Institution: | (1) BPPP Divn., Central Building Research Institute, Roorkee, 247 667, UA, India;(2) Dept. of Mathematics, Bhaskaracharya College of Applied Sciences (University of Delhi), Sector-2, Phase-1, Dwarka, New Delhi, 110045, India;(3) ex Principal, D.N. College, Meerut, UP, India |