Chudaporn O-paspasu และ Preeyaporn Prasarnsiwamai. (2007) The Effect of Nonformulary Drug Requests on the Pharmacy Cost. <i>Isan Journal ofPharmaceutical Sciences</i>, <i>3</i>(2), 119-127.Chudaporn O-paspasu และ Preeyaporn Prasarnsiwamai. "The Effect of Nonformulary Drug Requests on the Pharmacy Cost". Isan Journal ofPharmaceutical Sciences 3 (2007):119-127.Chudaporn O-paspasu และ Preeyaporn Prasarnsiwamai. The Effect of Nonformulary Drug Requests on the Pharmacy Cost. Faculty of Pharmaceutical Sciences KKU MSU UBU:ม.ป.ท. 2007.