Zakaria Ali. Alif Ba Ta : the life and times of Ahmad Khalid Yusof / Life and times of Ahmad Khalid Yusof by Zakaria Ali. - Kuala Lumpur : National Art Gallery, 2004. - 161 p. : ill. (some col.) ; 18 cm. - Malaysian artists' series . ISBN: 9839572695 LCCN: 2005436223 Dewey Class. No.: 499.2381 / ZAK