SEBAYANG, Manuel Haganta; ARIEF HANDANI. Penerapan Whatsapp Blast dalam Meningkatkan Kesadaran Wajib Pajak di KPP Pratama Bangkinang. Operation Technology and Management (OPTIMA) Journal, [S. l.], v. 2, n. 1, p. 28–34, 2025. DOI: 10.33830/optima.v2i1.11082. Disponível em: https://jurnal.ut.ac.id/index.php/optima/article/view/11082. Acesso em: 4 feb. 2026.