Sarawana Sangsuk. (2014) Differentiation Strategy for Competitive Advantage of Ceramics OTOP in the Lower Northern Region of Thailand. <i>SOCIAL SCIENCES RESEARCH AND ACADEMIC JOURNAL</i>, <i>9</i>(26), 43-60.Sarawana Sangsuk. "Differentiation Strategy for Competitive Advantage of Ceramics OTOP in the Lower Northern Region of Thailand". SOCIAL SCIENCES RESEARCH AND ACADEMIC JOURNAL 9 (2014):43-60.Sarawana Sangsuk. Differentiation Strategy for Competitive Advantage of Ceramics OTOP in the Lower Northern Region of Thailand. Graduate School;Nakhon Sawan Rajabhat University:ม.ป.ท. 2014.