Suhendar, Suhendar, and Ayi Wahyuni. “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, vol. 11, no. 2, Nov. 2018, pp. 126-33, doi:10.21009/biosferjpb.v11n2.126-133.