Abeypala, Roland ඉගෙනුම් මනෝවිද්යාවේ නව ප්රවණතා 1 = igenum manoovidyaavee nava pravanathaa 1 - Kottawa: Sara, 2014. - 240p.; 22 cm. ISBN: 978-955-584-496-3 Subjects--Topical Terms: Education Psychology Dewey Class. No.: 370.15 / ABE