Wan Salleh, W. M. Z. B., Mohd Yunus, M. Y. B., & Kurasli, E. N. Z. N. (2024). Skill development and career advancement: survey of the effectiveness of the fiber optic cable professional certification course - CA1C internal network and CA2C external network. Southeast Asian Journal of Technology and Science, 5(2), 53–58. https://doi.org/10.29210/810480800