AMALIA WAHYUNI; PRIATNA. ANALYSIS OF WHATSAPP USE IN IMPROVING THE QUALITY OF ADMINISTRATIVE PROCUREMENT DOCUMENT PROCESSING SERVICES AT PT MITRA MANDIRI INFORMATIKA. Akrab Juara : Jurnal Ilmu-ilmu Sosial, [S. l.], v. 10, n. 4, p. 1094–1105, 2025. DOI: 10.58487/akrabjuara.v10i4.2579. Disponível em: https://akrabjuara.com/index.php/akrabjuara/article/view/2579. Acesso em: 14 feb. 2026.