APA (7 वां संस्करण) प्रशस्ति पत्र

Barhem, B. (2002). Work Stress Patterns, Sources and Coping Strategies: A Study of Malaysian and Jordanian Customs Employees.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Barhem, Belal. Work Stress Patterns, Sources and Coping Strategies: A Study of Malaysian and Jordanian Customs Employees. 2002.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Barhem, Belal. Work Stress Patterns, Sources and Coping Strategies: A Study of Malaysian and Jordanian Customs Employees. 2002.

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