අධ්‍යාපන කළමනාකරණයේ මූල්‍ය කාර්යභාරය

By: ලියනගේ, ආර්.පීMaterial type: TextTextOriginal language: Sinhalese Publication details: 1997Description: පි. 84; සෙ.මී. 21ISBN: 955957003xOther title: R.P. Liyanage/Adyapana Kalamanakaranaye Mulya KaryabarayaSubject(s): අධ්‍යාපනයDDC classification: 370
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