Satita Bunsaard และ Panida Ninaroon. (2024) Human Resource Development Affecting Performance Efficiency of Personnel in Office of the Secretary, Royal Irrigation Department. <i>Journal of Social Sciences Innovations</i>, <i>1</i>(4), 18-34.Satita Bunsaard และ Panida Ninaroon. "Human Resource Development Affecting Performance Efficiency of Personnel in Office of the Secretary, Royal Irrigation Department". Journal of Social Sciences Innovations 1 (2024):18-34.Satita Bunsaard และ Panida Ninaroon. Human Resource Development Affecting Performance Efficiency of Personnel in Office of the Secretary, Royal Irrigation Department. DR.KET INSTITUTE OF ACADEMIC DEVELOPMENT AND PROMOTION:ม.ป.ท. 2024.