“The Survey on the Implementation of Online Tutoring Information Services at SMP PGRI 1 Buduran Sidoarjo”. Buana Pendidikan: Jurnal Fakultas Keguruan dan Ilmu Pendidikan Unipa Surabaya 17, no. 2 (August 25, 2021): 138–144. Accessed June 4, 2026. https://jurnal.unipasby.ac.id/jurnal_buana_pendidikan/article/view/3972.