APA (7 वां संस्करण) प्रशस्ति पत्र
Altwies, D., & Preston, J. (2016). Achieve PMP exam success: A concise study guide for the busy project manager (Fifth edition.). J. Ross Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Altwies, Diane, और Janice Preston. Achieve PMP Exam Success: A Concise Study Guide for the Busy Project Manager. Fifth edition. Plantation, Florida: J. Ross Publishing, 2016.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Altwies, Diane, और Janice Preston. Achieve PMP Exam Success: A Concise Study Guide for the Busy Project Manager. Fifth edition. J. Ross Publishing, 2016.
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