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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUniversity of the Philippines Diliman. National Institutes for Science and Mathematics Education Development, Ma. Lourdes Agad, Lolita Mondigo, Amelia E. Punzalan, और Arlene P. Dela Cruz. Chemistry Ng Sabon, Shampoo at Iba Pa. Quezon City: DZUP, 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUniversity of the Philippines Diliman. National Institutes for Science and Mathematics Education Development, et al. Chemistry Ng Sabon, Shampoo at Iba Pa. DZUP, 2012.
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