Crisostomo, I. T. (2001). Writing books is hard but rewarding. Philippine Star.
Dyfyniad Arddull ChicagoCrisostomo, Isabelo T. "Writing Books Is Hard but Rewarding." Philippine Star 2001.
Dyfyniad MLACrisostomo, Isabelo T. "Writing Books Is Hard but Rewarding." Philippine Star, 2001.
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