Silva, Gananasiri P.G. ලිංගික මනෝවිද්යා ප්රවේශය = lingika manoovidhYaa praveeSHaya - Pannipitiya; Sara Pub, 2018. - 96p. 21cm ISBN: 978-955-584-632-5 Subjects--Topical Terms: Sexual psychologyPsychology Dewey Class. No.: 155.33 / SIL