Qarah, N. A., Basavaiah, K., & Abdulrahman, S. A. (2017, September). Spectrophotometric determination of ethionamide in pharmaceuticals using Folin–Ciocalteu reagent and iron(III)-ferricyanide as chromogenic agents. Journal of Taibah University for Science.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Qarah, Nagib A.S., Kanakapura Basavaiah, و Sameer A.M Abdulrahman. "Spectrophotometric Determination of Ethionamide in Pharmaceuticals Using Folin–Ciocalteu Reagent and Iron(III)-ferricyanide as Chromogenic Agents." Journal of Taibah University for Science Sep. 2017.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Qarah, Nagib A.S., et al. "Spectrophotometric Determination of Ethionamide in Pharmaceuticals Using Folin–Ciocalteu Reagent and Iron(III)-ferricyanide as Chromogenic Agents." Journal of Taibah University for Science, Sep. 2017.