พานกระดึง วิไลพร. 2018. “Factors Affecting Credit Service Demand of Pak Phli Agricuitural Co-Operatives Ltd. Members, Nakhonnayok Province”. Journal of Humanities and Social Sciences, Rajapruk University 4 (1):135-44. https://so03.tci-thaijo.org/index.php/rpu/article/view/125771.