Baach, C. (1992). Speak to me: Comprehensive intractive video learning system. Thành phố Hồ Chí Minh: Trẻ.
शिकागो स्टाइल उद्धरणBaach, Christel. Speak to Me: Comprehensive Intractive Video Learning System. Thành phố Hồ Chí Minh: Trẻ, 1992.
एमएलए उद्धरणBaach, Christel. Speak to Me: Comprehensive Intractive Video Learning System. Thành phố Hồ Chí Minh: Trẻ, 1992.
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