Harefa N, Silalahi NFD, Purba LSL, Sianipar HF. The effect of colloids practicum e-module to improve students™ interest on virtual lab during the covid-19 pandemic. J.Pendidik.Kim [Internet]. 2021 Dec. 1 [cited 2025 Jul. 6];13(3):172-9. Available from: https://jurnal.unimed.ac.id/2012/index.php/jpk/article/view/29016