Yongyuth Ruanta. 1999. Law enforcement for health consumer protection : a study in food and drug product. Faculty of Graduate Studies, Mahidol University;
Yongyuth Ruanta. (1999) Law enforcement for health consumer protection : a study in food and drug product . Mahidol University/Bangkok.
Yongyuth Ruanta. Law enforcement for health consumer protection : a study in food and drug product. . Bangkok:Mahidol University, 1999.
Yongyuth Ruanta. (1999) Law enforcement for health consumer protection : a study in food and drug product . Mahidol University/Bangkok.