ASHRAFUL ISLAM; LAILA AKHTER. A Conceptual Framework for Designing an E-Portfolio System to Enhance Malaysian Skills Certification Processes . International journal of multivariate data analysis theory & practice, [S. l.], v. 6, n. 01, p. 7–13, 2021. Disponível em: https://scientiamreearch.org/index.php/ijmdatp/article/view/435. Acesso em: 21 jul. 2026.