K, A. W. A. A. G. S. A. A. A. M. W. S. A. (2025). Simultaneous determination of theobromine (THEOB), theophylline (THEOP) and caffeine (CAF) in commercially available food products using UPLC technique. Acta Chromatographica. https://doi.org/10.1556/1326.2024.01292
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)K, Ahmad W.; Ahmad A.; Ghosn S.A.; Ali A.; Ansari M.N.; Wahab S.; Ashraf. "Simultaneous Determination of Theobromine (THEOB), Theophylline (THEOP) and Caffeine (CAF) in Commercially Available Food Products Using UPLC Technique." Acta Chromatographica 2025. https://doi.org/10.1556/1326.2024.01292.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)K, Ahmad W.; Ahmad A.; Ghosn S.A.; Ali A.; Ansari M.N.; Wahab S.; Ashraf. "Simultaneous Determination of Theobromine (THEOB), Theophylline (THEOP) and Caffeine (CAF) in Commercially Available Food Products Using UPLC Technique." Acta Chromatographica, 2025, https://doi.org/10.1556/1326.2024.01292.