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Mranggen Demak State High School Library is a work unit formed with the decision of an authorized official to serve the needs of school residents to the books in Mranggen Demak State High School. In this school library the library management is still conventional by taking notes in the big books. Services to library members are ineffective and unsatisfactory because it takes a long time to find the books they will borrow on every bookshelf available and look at notes in the big books. The slow preparation of the report so that the development of the library is less attention. Seeing these conditions the author tries to provide alternatives by making applications that can facilitate data processing and improve the efficiency of time and cost that has been in the school library. At this writing, the application made is a multiuser-based barcode technology application with a life cycle system development method. The system is designed using Microsoft Visul Basic 6.0 with a SQL Server 2000 database so that the implementation is in the form of a ready-to-use application system that is implemented in a library room. Application management of multiuser-based barcode technology is expected to be able to solve the problems that exist in the SMA Negeri 1 Mranggen Demak Library because in this system the data is processed centrally in one database so that data is not only recorded in the big books that have been happening.

The existence of the phenomenon of teacher performance degradation,can be seen fromteachers who do not do their job properly, the teachers whoteach only highly educated butless attention function. Improved performance canbe achieved by improving teachers' leadership style of principals and schoolwork climate. Therefore, the central issue in thisstudy is how much influence theprincipal's leadership style and school climate work onteacher performance.Thisstudy aims to analyze the influence of principal leadership style on teacherperformance and school climate effects work on teacher performance. Thehypothesis is that there is a positive effect between: the principal's leadershipstyle on teacher performance and the climate of the school work on teacherperformance.This study belongs to the kind of quantitative research using the surveymethod and descriptive analytic approach. The samples used were from allpopulation of 50 teachers SMA/SMKBina Nusantara Semarang. Techniquesof data collection through questionnaires. Data analysis technique used is thePearson product moment correlation, determination, and multiple linearregression. Furthermore, the data that has been collected is processed and theninterpreted, analyzed, and described according to the problem andresearchobjectives.Based on the results of this study concluded that theprincipal's leadership style and school climate is partially working (people) onthe performance of teachers.

This study sought to determine how students perceive entrepreneurshipas a career and whether they would want to pursue a careerinentrepreneurship upon completion of school. The study bore in mind thatfactors have the potential to influence the students’perception ofentrepreneurship and thus contribute in determining theirentrepreneurialintentions. As such learning Business Studies andhaving parentsin selfemployment was viewed as having prior exposure toentrepreneurship. Datafor this study was obtained by use of a questionnaireadministered torandomly selected students from STIE Totalwin Semarang. They were 85respondents whocomprised of both male and female students. The researchrevealed that majority of students had a positiveperception ofentrepreneurship as a career option. It was alsoobserved that students whohad parentsin self employment were highlymotivated to go intoentrepreneurship so as to continue in family business.

In order to increase student interest in learning, increase grades and facilitate the understanding of biology subjects on the material of the human excretion system class XI Science. From a number of smarphone users in Indonesia, it turns out that most of the people are only intended for telephone, short message service (SMS), playing songs / videos, accessing social networks (facebook, twiter, BBM, Line, WhatsApp) and many playing games including students in high school. Negeri 2 Mranggen. The author uses data collection research methods including observation, interviews, questionnaires, R&D product development methods, prototype methods and object-oriented approaches. The equipment used in designing this system uses UML modeling. Use Case Diagrams include, Activity Diagrams, Class Diagrams, and Sequence Diagrams and the software used by the author is Android Development Tools (ADT) and MySQL as a database. Mobile learning media application is expected to help facilitate the needs of students to learn the material of the human excretion system online at any time without any place and time restrictions.