Simcha, R. (1981). Flexible working hours; an innovation in the quality of work life. McGraw-Hill, Inc.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSimcha, Ronen. Flexible Working Hours; an Innovation in the Quality of Work Life. New York: McGraw-Hill, Inc, 1981.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSimcha, Ronen. Flexible Working Hours; an Innovation in the Quality of Work Life. McGraw-Hill, Inc, 1981.
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