DeCurtins, J. (2015). Ultimate plank fitness: For a strong core, killer abs - and a killer body. Fair Winds Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDeCurtins, Jennifer. Ultimate Plank Fitness: For a Strong Core, Killer Abs - and a Killer Body. Beverly, MA: Fair Winds Press, 2015.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDeCurtins, Jennifer. Ultimate Plank Fitness: For a Strong Core, Killer Abs - and a Killer Body. Fair Winds Press, 2015.
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