Pramuan Ploykamonchun. (2018) DEVELOPMENT OF EDUCATIONAL INSTITUTIONS ADMINISTRATIVE EFFECTIVENESS MODEL FOR THE VISUALLY IMPAIRED PERSONS. <i>Humanities, Arts and Social Sciences Studies</i>, <i>18</i>(2), 487-509.Pramuan Ploykamonchun. "DEVELOPMENT OF EDUCATIONAL INSTITUTIONS ADMINISTRATIVE EFFECTIVENESS MODEL FOR THE VISUALLY IMPAIRED PERSONS". Humanities, Arts and Social Sciences Studies 18 (2018):487-509.Pramuan Ploykamonchun. DEVELOPMENT OF EDUCATIONAL INSTITUTIONS ADMINISTRATIVE EFFECTIVENESS MODEL FOR THE VISUALLY IMPAIRED PERSONS. Silpakorn University Research and Development Institute:ม.ป.ท. 2018.