Birla Institute of Technology and Science, Pilani, Available Volumes: Vol.1-5,1968-72 University of Hyderabad, Hyderabad, Available Volumes: Vol.1+ University of Kerala, Thiruvanathapuram, Available Volumes: Vol.1-6,1968-1973 Punjab Agricultural University, Ludhiana, Available Volumes: Vol.1-3,1968-1969;Vol.5-6,1972-1973
