Goodman, T. (2015). Sharpie® art workshop: Techniques & ideas for transforming your world. Rockport Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGoodman, Timothy. Sharpie® Art Workshop: Techniques & Ideas for Transforming Your World. Beverly, MA: Rockport Publishers, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGoodman, Timothy. Sharpie® Art Workshop: Techniques & Ideas for Transforming Your World. Rockport Publishers, 2015.
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