Wong, P. K. (2002). Physico-Chemical Characteristics of Roselle (Hibiscus Sabdariffa L.) Calyx and Effect of Processing and Storage on the Stability of Anthocyanins in Roselle Juice.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Wong, Peng Kong. Physico-Chemical Characteristics of Roselle (Hibiscus Sabdariffa L.) Calyx and Effect of Processing and Storage on the Stability of Anthocyanins in Roselle Juice. 2002.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Wong, Peng Kong. Physico-Chemical Characteristics of Roselle (Hibiscus Sabdariffa L.) Calyx and Effect of Processing and Storage on the Stability of Anthocyanins in Roselle Juice. 2002.
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