Bautista, R., Rubio, V., & Undag, B. (1991). A Study on the system of scheduling of exams of the different departments of the College of Engineering. College of Engineering.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bautista, Rankine, Vicky Rubio, و Bong Undag. A Study on the System of Scheduling of Exams of the Different Departments of the College of Engineering. Diliman, Quezon City: College of Engineering, 1991.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Bautista, Rankine, et al. A Study on the System of Scheduling of Exams of the Different Departments of the College of Engineering. College of Engineering, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.