Sutarna, Agus, Efri Syamsul Bahri, Suyadi Murdi Wiharjo, and Mohd Mizan Mohammad Aslam. 2023. “Review of the Formulation of the Professional Certification Scheme”. International Journal of Science Education and Cultural Studies 2 (2):70-77. https://doi.org/10.58291/ijsecs.v2i2.131.