Loong Chin, C., Khun Ma, C., Yang Tan, J., Zawawi Awang, A., & Omar, W. (2018). Effect Of Pre-Tensioned Level on Axial Stress-Strain Behaviour of Confined Concrete: A Review. International Journal of Engineering and Technology, 7(3.9), 18-22. https://doi.org/10.14419/ijet.v7i3.9.15265