รัตน์ธศักดิ์ เพ็งชะตา. (2018) A Required Specification from Entrepreneur on Phayao OTOP Website by Using Participatory Requirement Elicitation Frameworks. <i>Journal of Information Science and Technology</i>, <i>8</i>(2), 1-14.รัตน์ธศักดิ์ เพ็งชะตา. "A Required Specification from Entrepreneur on Phayao OTOP Website by Using Participatory Requirement Elicitation Frameworks". Journal of Information Science and Technology 8 (2018):1-14.รัตน์ธศักดิ์ เพ็งชะตา. A Required Specification from Entrepreneur on Phayao OTOP Website by Using Participatory Requirement Elicitation Frameworks. Faculty of Information Science and Technology, Mahanakorn University of Technology:ม.ป.ท. 2018.