Sta. Ana, E. T. (1973). A proposed resource unit of Philippine games and sports to supplement the physical education program of the Philippine College of Commerce Laboratory High School. s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSta. Ana, Elena T. A Proposed Resource Unit of Philippine Games and Sports to Supplement the Physical Education Program of the Philippine College of Commerce Laboratory High School. [Diliman, Quezon City: s.n.], 1973.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSta. Ana, Elena T. A Proposed Resource Unit of Philippine Games and Sports to Supplement the Physical Education Program of the Philippine College of Commerce Laboratory High School. s.n.], 1973.
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