Parlindungan1, P. .; Sanny, L. .; Sholihah, S. A. .; Nofrisel , N. .; Zaroni , Z. . Behaviour and Satisfaction Effects on User Loyalty Within E-Procurement of National Oil Firms. Studi Akuntansi, Keuangan dan Manajemen 2025, 5, 469-484.