Permana, H., and J. Mardizal. “EFEKTIVITAS PEMANFAATAN E-LEARNING PADA MATA KULIAH PRAKTIK PLUMBING DAN SANITASI DI ERA PANDEMI COVID-19”. Jurnal Applied Science in Civil Engineering, Vol. 4, no. 3, Sept. 2023, pp. 294-8, doi:10.24036/asce.v4i3.66883.