Efendi, Mohammad. “KONTRIBUSI KINERJA TUTOR BELAJAR TERHADAP PERFORMA AKADEMIK PESERTA DIDIK PROGRAM PAKET C REMIDI”. JIV-Jurnal Ilmiah Visi 2, no. 2 (December 31, 2007): 79 - 86. Accessed May 4, 2025. http://103.8.12.212:33180/unj/index.php/jiv/article/view/7499.