MUHAMMAD HAFIZZUDDIN MD TENI; AHMAD ZUHAIR AMANI AZHAR. INNOVATING PROCUREMENT OPERATIONS: AN INTEGRATED PURCHASE ORDER MANAGEMENT IN THE PURCHASING DEPARTMENT. Jurnal Kejuruteraan, Teknologi and Sains Sosial (JKTSS), [S. l.], v. 12, n. 1, p. 395–406, 2026. Disponível em: https://jktss.puo.edu.my/jurnalpuo/index.php/jurnal/article/view/344. Acesso em: 8 jan. 2026.