Nirmawan, Nirmawan, Abdullah Hasibuan, and Isni Khairina , trans. “Standardization Strategy for the Indonesian Language Proficiency Test (UKBI) in the PBSI Study Program at UMN Al-Washliyah”. West Science Social and Humanities Studies 3, no. 07 (July 31, 2025): 1101–1107. Accessed December 6, 2025. https://wsj.westsciences.com/index.php/wsshs/article/view/2118.