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ආතතිය කළමනාකරණය මානසික විඩාව සහ විඩාවෙන් මිදීම Perera, G. Sinhala

By: Perera, G. Prof. Perera, Gnanadhasa.
Material type: materialTypeLabelBookPublisher: Colombo: Sahasra Publishers; 2005Description: 219p.: ill.; 21cm.ISBN: 9558622400.Other title: Mental Stress Tension and Prevention Sinhala [Sinhala].
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