Wannarumon Kielarova, Somlak, Prapasson Pradujphongphet, and Chokenithi Nakmethee. 2016. “Development of computer-aided design module for automatic gemstone setting on halo ring”. Engineering and Applied Science Research 43 (November):239-43. https://ph01.tci-thaijo.org/index.php/easr/article/view/70200.