Rebecca Rosario O. Bercasio และผู้แต่งคนอื่นๆ. (2014) Distance Education of Public School Principals: The Experience in Bicol University, the Philippines. <i>RANGSIT JOURNAL OF EDUCATIONAL STUDIES</i>, <i>1</i>(1), 65-82.Rebecca Rosario O. Bercasio และผู้แต่งคนอื่นๆ. "Distance Education of Public School Principals: The Experience in Bicol University, the Philippines". RANGSIT JOURNAL OF EDUCATIONAL STUDIES 1 (2014):65-82.Rebecca Rosario O. Bercasio และผู้แต่งคนอื่นๆ. Distance Education of Public School Principals: The Experience in Bicol University, the Philippines. Rangsit University, Pathum Thani, Thailand:ม.ป.ท. 2014.