Singal, M., & Singal, A. R. (1976). Objective test in Undergraduate mathematics: Trignometry. University leadership project in Mathematics.
استشهاد بنمط شيكاغوSingal, M.K, و Asha Rani Singal. Objective Test in Undergraduate Mathematics: Trignometry. Meerut: University leadership project in Mathematics, 1976.
MLA استشهادSingal, M.K, و Asha Rani Singal. Objective Test in Undergraduate Mathematics: Trignometry. University leadership project in Mathematics, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.