IS:2131-1981. Indian standard method for standard penetration test for soils.
Bureau of Indian Standards[BIS]
IS:2131-1981. Indian standard method for standard penetration test for soils. - New Delhi Bureau of Indian Standards 1987 - 10p.
ENG
IS CODE / B.I.S
IS:2131-1981. Indian standard method for standard penetration test for soils. - New Delhi Bureau of Indian Standards 1987 - 10p.
ENG
IS CODE / B.I.S