Chaer, Moh. Toriqul, Muhammad Atabiqul As’ad, Qusnul Khorimah, and Erik Sujarwanto. “Covid-19 Pandemic And Sustainability Study At Madrasah Ibtidaiyyah Pesantren Sabilil Muttaqien (PSM) Sulursewu, Teguhan, Ngawi, East Java”. Jurnal Karya Abdi 1, no. 2 (December 22, 2020): 103-114. Accessed August 27, 2025. https://ejournal.unisi.ac.id/index.php/karya/article/view/1156.