Shankar, Siddharth, and Hikmat Raj Joshi. “Comparison of Concrete Properties Determined by Destructive and Non-Destructive Tests”. Journal of the Institute of Engineering 10, no. 1 (August 3, 2014): 130–139. Accessed May 4, 2024. https://www.nepjol.info/index.php/JIE/article/view/10889.