Alexandro, Rinto. “Application of Total Quality Services to Increase Non-Formal Education Institution Capacity in Kampung Inggris Kediri ”. Cendekia: Jurnal Pendidikan dan Pembelajaran 14, no. 1 (February 24, 2020): 63-76. Accessed May 8, 2024. https://cendekia.soloclcs.org/index.php/cendekia/article/view/611.