N. I. HL, N. Nasruddin, A. E. Sejati, and A. Sugiarto, “Developing Teaching Material of Research Methodology and Learning with 4D Model in Facilitating Learning During the Covid-19 Pandemic to Improve Critical Thinking Skill”, j. kependidikan. has. penelit. kaji. kepustakaan. bid. pendidik. pengajaran. n.a., vol. 9, no. 2, pp. 541–554, May 2023.