Maf’udah S. THE EFFECTIVENESS OF THE DIRECT METHOD IN THE PROCESS OF ACQUIRING ARABIC AS THE SECOND LANGUAGE OF THE STUDENTS OF MAMBAUS SHOLIHIN BOARDING SCHOOL ( Review of B.F. Skinner Theory ). JPBA [Internet]. 2025 Mar. 25 [cited 2026 Aug. 24];4(1):30-44. Available from: https://urj.uin-malang.ac.id/index.php/JPBA/article/view/14864