Angkat CI, Sitorus Z, Iqbal M. ROI and SNA Analysis in Testing the Effectiveness of New Student Admission Promotion: A Case Study at MAS Al Washliyah Gedung Johor. ijics [Internet]. 2025 Jul. 23 [cited 2025 Oct. 27];9(2):72-80. Available from: https://ejurnal.stmik-budidarma.ac.id/index.php/ijics/article/view/8901