Yatimah, Durotul. 2012. “PENERAPAN METODE PROBLEM POSSING PADA PROGRAM KEAKSARAAN USAHA MANDIRI DI PKBM”. JIV-Jurnal Ilmiah Visi 7 (2), 130 -37. https://journal.unj.ac.id/unj/index.php/jiv/article/view/3667.