Nopparat Phraduangngarm. (2024) The Development of an Employee Leave Information System : A Case Study of Personnel, University of Phayao. <i>The Journal of Spatial Innovation Development</i>, <i>5</i>(3), 1-17.Nopparat Phraduangngarm. "The Development of an Employee Leave Information System : A Case Study of Personnel, University of Phayao". The Journal of Spatial Innovation Development 5 (2024):1-17.Nopparat Phraduangngarm. The Development of an Employee Leave Information System : A Case Study of Personnel, University of Phayao. School of Information and Communication Technology, University of Phayao:ม.ป.ท. 2024.