Varkevisser, C. M. -. (1991). Designing and conducting health systems research projects: Health Systems Research Training Series. International Development Research Center.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Varkevisser, Corlien M. -Pathmanathan. Designing and Conducting Health Systems Research Projects: Health Systems Research Training Series. Ottawa, Ontario: International Development Research Center, 1991.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Varkevisser, Corlien M. -Pathmanathan. Designing and Conducting Health Systems Research Projects: Health Systems Research Training Series. International Development Research Center, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.