This study aims to look at the relationship between Principal Managerial and Library Employee Competence in School Library Services. The method used is a survey with a population of 7158 heterogeneous junior high school students. The research instrument is based on content validity. Where is calculated Reliability on each instrument with Cronbach Alpha formula. Data analysis using the formula of correlation and regression. Before the analysis is done, the reliability of each instrument is calculated, obtained from the managerial principal = tt 0.400, the competence of library employees r tt = 0.580, and school library services r tt = 0.504. Data analysis using the formula of correlation and regression. there is a positive relationship between managerial principals and the competence of library employees towards library services. Strength of relationships between variables (X1) and variable (X2) expressed by the regression equation Ŷ = 0.793 + 0.338 (X1) + 0.632 (X2) and the correlation coefficient r yI = 0.762 significance at 0.05.From the results of the study, it can be concluded that the principal must have a school library operational unit, a vision, and work with the school environment. Principals need to run open managerial for the progress of libraries and library services need to be improved in achieving better quality education.

This study aims to determine the structure of the Echinoderms Community in the Coastal Area of Nirwana Beach, Baubau City, which is used as a media for the distribution of coastal ecosystems. The method used in this study is a survey method. Data were taken using purposive sampling technique and analyzed in quantitative descriptive. Calculations are used in quantitative data processing using the Shanon-Weaver Diversity formula, Simpson dominance and Darrell’s abundance. Vodopich is the number of individuals per unit area. Environmental factors measured are temperature, salinity, and pH. The results showed that at the two research sites namely on the Nirwana beach of Baubau City, Echinoderms found consisted of 4 classes, namely Holothuroidea, Ophiuroidea, Echinoidea dan kelas Asteroidea. The diversity index of Echinoderms found in the two research sites shows differences and if based on the diversity index benchmark values, both locations are in the low diversity category (H < 1,0) which means that productivity is very low as an indication of heavy pressure and an unstable ecosystem. The dominance value of Echinoderms indicates that at the Nirwana beach location no one has dominated. While the abundance value of each class in Echinoderms shows that at the beach location is still very low. This is caused by excessive community activities.