I. Ilyas, A. N. A. M. . Liu, and K. . Sara, “The Effectiveness of Using Virtual Laboratories Based on Integrated Science Process Skills Zoom Meeting to Increase Understanding of Students Physics Concepts During the Covid-19 Pandemic”, jppipa, pendidikan ipa, fisika, biologi, kimia, vol. 8, no. 5, pp. 2235–2240, Nov. 2022.