Reza, Muhammad, et al. “Persepsi Mahasiswa Terhadap Pembelajaran Daring Berbasis Video Dengan Bantuan Pen Tablet Selama Pandemi Covid-19”.
Orbital: Jurnal Pendidikan Kimia, vol. 5, no. 2, Dec. 2021, pp. 124-36,
https://doi.org/10.19109/ojpk.v5i2.9216.