Birla Institute of Technology and Science, Pilani, Available Volumes: Vol.1-24,1967-74 University of Hyderabad, Hyderabad, Available Volumes: Vol.1-95, 1967-1986 Panjab University, Chandigarh, Available Volumes: Vol.1-4,1967-1968;New Series:Vol.5-33,1968-1977;Vol.40-67,1981-1990;Vol.71-76,1992-1993
