El-Gendi, S., & Hassan, A. (1969). Solution of Variational Problems with Bounded Control Variables. The Institute of National Planning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEl-Gendi, Slah, और Ahmed Hassan. Solution of Variational Problems with Bounded Control Variables. Cairo: The Institute of National Planning, 1969.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEl-Gendi, Slah, और Ahmed Hassan. Solution of Variational Problems with Bounded Control Variables. The Institute of National Planning, 1969.
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