Gerardo, B. D. (2000). Effects of a computer tutorial program on problem-solving skills, achievement and attitude towards mathematics.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGerardo, Bobby D. Effects of a Computer Tutorial Program on Problem-solving Skills, Achievement and Attitude Towards Mathematics. 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGerardo, Bobby D. Effects of a Computer Tutorial Program on Problem-solving Skills, Achievement and Attitude Towards Mathematics. 2000.
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