Estopace, E. Toy & tech smart: Electronics education made fun and easy. IN Technology. The Philippine Star.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEstopace, Eden. "Toy & Tech Smart: Electronics Education Made Fun and Easy. IN Technology." The Philippine Star .
एमएलए (9वां संस्करण) प्रशस्ति पत्रEstopace, Eden. "Toy & Tech Smart: Electronics Education Made Fun and Easy. IN Technology." The Philippine Star, .
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