Wulff, I. (1962). Burial customs among the Yakan, a muslim people in the Southern Philippines. s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWulff, Inger. Burial Customs Among the Yakan, a Muslim People in the Southern Philippines. [Denmark: s.n.], 1962.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWulff, Inger. Burial Customs Among the Yakan, a Muslim People in the Southern Philippines. s.n.], 1962.
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