Strengthening and Management of The Campus-Based Indonesian Language Institution for Foreign Speakers (BIPA) at The PBSI Study Program of UMN Al Washliyah With The Language Center of North Sumatra Province. WSIS [Internet]. 2025 Jul. 31 [cited 2025 Dec. 6];3(07):1267-74. Available from: https://wsj.westsciences.com/index.php/wsis/article/view/2125