Birla Institute of Technology and Science, Pilani, Available Volumes: Vol.1-27,1970-1983 Cochin University of Science & Technology, Cochin, Available Volumes: 1983+ Panjab University, Chandigarh, Available Volumes: Vol.2-11,1971-1976;Vol.15-21,1978-1981;Vol.23-47,1982-1991
