(1990). Testing problems with linear or angular inequality constraints / Johan C. Akkerboom.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTesting Problems with Linear or Angular Inequality Constraints / Johan C. Akkerboom. 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTesting Problems with Linear or Angular Inequality Constraints / Johan C. Akkerboom. 1990.
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