Obermiller, E. E., & Sobatī, H. S. (1989). Nirvāṇa in Tibetan Buddhism Classics India religion and philosophy series no. 1.
शिकागो स्टाइल उद्धरणObermiller, Evgenij E., और Haracarana Siçngha Sobatī. "Nirvāṇa in Tibetan Buddhism." Classics India Religion and Philosophy Series No. 1 1989.
एमएलए उद्धरणObermiller, Evgenij E., और Haracarana Siçngha Sobatī. "Nirvāṇa in Tibetan Buddhism." Classics India Religion and Philosophy Series No. 1 1989.
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