Firmansyah E, Siregar I. Analysis to effectiveness e-wom at Madrasah Tsanawiyah Azzidin Medan Denai. JMAS [Internet]. 2024Dec.20 [cited 2026Jun.24];8(1):29-38. Available from: https://exsys.iocspublisher.org/index.php/JMAS/article/view/612