Suhendar, Suhendar, and Ayi Wahyuni. 1. “Achievement and Response of Students at Favorite Junior High Schools in Sukabumi on Trends in International Mathematics and Science Study (timss) Questions”. Biosfer: Jurnal Pendidikan Biologi 11 (2), 126-33. https://doi.org/10.21009/biosferjpb.v11n2.126-133.