Gotham, M., Gullings, K., & Hamm, C. Open Music Theory (Version 2.). Oklahoma State University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGotham, Mark, Kyle Gullings, और Chelsey Hamm. Open Music Theory. Version 2. [Place of publication not identified]: Oklahoma State University.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGotham, Mark, et al. Open Music Theory. Version 2. Oklahoma State University.
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