Greenberg, Saul
Sketching user experiences
Elsevier, 2012
 Buku Teks
Handy, Richard
Sketching the moon : an astronomical artist’s guide
[Springer, ], 2012
 eBooks
Hasegawa, Noriyoshi
Sketching interiors: colour: A Step by step guide
Prgeone, 2006
 Buku Teks
Hasegawa, Noriyoshi
Sketching interiors: Coloured pencils: A Step- by step quide
Prgeone, 2007
 Buku Teks
Hasegawa, Noriyoshi
Sketching interiors: coloured pencils: a step-by-step guide
Page one publishing pte ltd, 2010
 Buku Teks