Perez, R. H., & Tan, J. D. (2006). Production of acidophilus milk enriched with purees from colored sweet potatoes (ipomoea batatas Linn.) varieties. Annals of Tropical Research.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Perez, Rodney H., و Julie D. Tan. "Production of Acidophilus Milk Enriched with Purees from Colored Sweet Potatoes (ipomoea Batatas Linn.) Varieties." Annals of Tropical Research 2006.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Perez, Rodney H., و Julie D. Tan. "Production of Acidophilus Milk Enriched with Purees from Colored Sweet Potatoes (ipomoea Batatas Linn.) Varieties." Annals of Tropical Research, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.