Septiani, A. D., S. Sjaifuddin, and L. . Berlian. “Pengembangan Instrumen Evaluasi Tes Two-Tier Multiple Choice Berbasis Literasi Sains Siswa Kelas VII Pada Tema Hujan Asam: (Development of Two-Tier Multiple Choice Test Evaluation Instruments Based on Science Literacy for Class VII Students on Acid Rain Theme)”. BIODIK, vol. 8, no. 1, Apr. 2022, pp. 167 -4, doi:10.22437/bio.v8i1.17305.