PHAM THI BICH THU; TRINH, T. P. IMPROVING THE CONTROL OF SERVICE DELIVERY – CASH COLLECTION CYCLE AT THE BUSINESS CENTER – VNPT THANH HOA. Hong Duc University Journal of Science, [S. l.], v. 83, n. 1, p. 50-62, 2026. DOI: 10.70117/hdujs.83.1.2026.889. Disponível em: https://hdujs.edu.vn/index.php/hdujs/article/view/889. Acesso em: 15 apr. 2026.