Ung Lim, Hyun, Su Jeong Pyeon, and Sang Soo Lee. “Radon Gas Adsorption Properties of Non-Cement Matrix Using Anthracite”. International Journal of Engineering and Technology 7, no. 3.34 (September 1, 2018): 585–589. Accessed May 12, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/19387.