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Gill, Robert W.. (). Rendering With Pen dan ink . London: Wiley.

Chicago Style

Gill, Robert W.. Rendering With Pen dan ink. London: Wiley, . Text.

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Gill, Robert W.. Rendering With Pen dan ink. London: Wiley, . Text.

Turabian Style

Gill, Robert W.. Rendering With Pen dan ink. London: Wiley, . Print.