MUFIDA, S. N.; SIGIT, D. V.; RISTANTO, R. H. Integrated project-based e-learning with science, technology, engineering, arts, and mathematics (PjBeL-STEAM): its effect on science process skills. Biosfer: Jurnal Pendidikan Biologi, v. 13, n. 2, p. 183-200, 21 Oct. 2020.