Gatawa, R. İ., Suleiman, K., & Yusuf, İ. (2018, May). Availability analysis of a consecutive three stages deteriorating standby system considering maintenance and replacement. Journal of Mathematical Sciences and Modelling.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Gatawa, Ramatu İdris, Kabiru Suleiman, و İbrahim Yusuf. "Availability Analysis of a Consecutive Three Stages Deteriorating Standby System Considering Maintenance and Replacement." Journal of Mathematical Sciences and Modelling May. 2018.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Gatawa, Ramatu İdris, et al. "Availability Analysis of a Consecutive Three Stages Deteriorating Standby System Considering Maintenance and Replacement." Journal of Mathematical Sciences and Modelling, May. 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.