El-Sayed, A., & Gamal, R. (2019). Infinite point and Riemann–Stieltjes integral conditions for an integro-differential equation. Vilnius University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEl-Sayed, Ahmed, और Reda Gamal. Infinite Point and Riemann–Stieltjes Integral Conditions for an Integro-differential Equation. Vilnius University Press, 2019.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEl-Sayed, Ahmed, और Reda Gamal. Infinite Point and Riemann–Stieltjes Integral Conditions for an Integro-differential Equation. Vilnius University Press, 2019.
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