YIARAYONG, Pairote, and Phakakorn PANPHO. 2015. “On Classical Quasi-Primary Radical of Submodules and Classical Quasi-Primary Radical Formula of Submodules”. Walailak Journal of Science and Technology (WJST) 12 (11):1019-29. https://wjst.wu.ac.th/index.php/wjst/article/view/1383.