Choong, S. S. (2004). A preliminary study on exfoliative vaginal cytology in captive sumatran rhinoceros (Dicerorhinus sumatrensis). The Research Management Centre.
シカゴスタイル引用形Choong, Siew Shean. A Preliminary Study On Exfoliative Vaginal Cytology in Captive Sumatran Rhinoceros (Dicerorhinus Sumatrensis). The Research Management Centre, 2004.
MLA引用形式Choong, Siew Shean. A Preliminary Study On Exfoliative Vaginal Cytology in Captive Sumatran Rhinoceros (Dicerorhinus Sumatrensis). The Research Management Centre, 2004.
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