Sapnu, R. (1999). Pinay calendar genius wants to wake it to Guiness Book. Philippine Star.
Chicagoスタイル(17版)引用形式Sapnu, Ric. "Pinay Calendar Genius Wants to Wake It to Guiness Book." Philippine Star 1999.
MLA(9版)引用形式Sapnu, Ric. "Pinay Calendar Genius Wants to Wake It to Guiness Book." Philippine Star, 1999.
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