DAULAAY, I. (1981). Helen Keller Anak Buta, Tuli, Bisu Tapi Jadi Pengarang Masyhur Is Daulay. Gramedia.
Chicago Style (17th ed.) CitationDAULAAY, Is. Helen Keller Anak Buta, Tuli, Bisu Tapi Jadi Pengarang Masyhur Is Daulay. Gramedia, 1981.
MLA引文DAULAAY, Is. Helen Keller Anak Buta, Tuli, Bisu Tapi Jadi Pengarang Masyhur Is Daulay. Gramedia, 1981.
警告:这些引文格式不一定是100%准确.