APA (7 वां संस्करण) प्रशस्ति पत्र

Umar, M. S. (2013). Complexity of Nigerian Company Income Tax Act (CITA 2007): Readability assessment.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Umar, Musa Sulaiman. Complexity of Nigerian Company Income Tax Act (CITA 2007): Readability Assessment. 2013.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Umar, Musa Sulaiman. Complexity of Nigerian Company Income Tax Act (CITA 2007): Readability Assessment. 2013.

चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.