IINDIAN STANDARD. (1963):Methods of test for aggregates for concrete, IS: 2386, Part VIII—Petrographic Examination, Indian Standard Institution, New Delhi, pp. 4 to 20.
INDIAN STANDARD. (1980):Coarse and fine aggregates from natural sources for concrete. Is: 383, Indian Standard Institution, New Delhi, pp. 4 to 18.
KRISHNAN M. S., (1982):Geology of India and Burma, Higginbothams (p) Limited, Madras.