Schalk, P. (1996). Logo of Yālppāṇana ppalkalaikkalakam. Uppsala studies in the history of religions.
芝加哥风格引文Schalk, Peter. "Logo of Yālppāṇana Ppalkalaikkalakam." Uppsala Studies in the History of Religions 1996.
MLA引文Schalk, Peter. "Logo of Yālppāṇana Ppalkalaikkalakam." Uppsala Studies in the History of Religions, 1996.
警告：这些引文格式不一定是100％准确.