त्रिपाठी Tripathi गGथT. गहन पर्यावरणको सैद्धान्तिक अवधारणा Gahan Paryavaranko Saiddhantik Awadharana. Tribhuvan University Journal [Internet]. 2018 Dec. 31 [cited 2024 Dec. 26];32(2):281-94. Available from: https://nepjol.info./index.php/TUJ/article/view/24724