Masda Surti Simatupang, Erni Murniarti, and Ramot Peter. “STUDENTS’ LEARNING ATTITUDES AS IMPACT OF ONLINE LEARNING MATERIALS”. PalArch’s Journal of Archaeology of Egypt / Egyptology, vol. 17, no. 4, Dec. 2020, pp. 1744-57, https://archives.palarch.nl/index.php/jae/article/view/1763.