Yaki, A. A., K. M. Sanda, and R. M. Bello. “Improvement of the Concept of Mitosis Instruction to Improve Biological Achievement Among Secondary School Students”. Jurnal Pendidikan Teknologi Kejuruan, vol. 3, no. 3, Aug. 2020, pp. 164-9, doi:10.24036/jptk.v3i3.12723.