1. BIS (Bureau of Indian Standards). Methods of test for aggregates for concrete, Part IV. New Delhi: IS 2386; 1963. India.
2. BIS (Bureau of Indian Standards). Methods of test for aggregates for concrete, Part I. New Delhi: IS 2386; 1963. India.
3. BIS (Bureau of Indian Standards). Methods of test for aggregates for concrete, Part III. New Delhi: IS 2386; 1963. India.
4. BIS (Bureau of Indian Standards). Determination of Specific Gravity. New Delhi: IS 1202; 1978. India.
5. BIS (Bureau of Indian Standards). Methods for Testing Tar and Bituminous Materials: Determination of penetration. New Delhi: IS 1203; 1978. India.