Space Applications Centre (SAC), Available Volumes: NULL(missing: NULL)
Atira, Available Volumes: Vol.44-46,1959-60(missing: Vol.46,No.3,5,6,1960)
International Crops Research Institute for the Semi-Arid Tropics, Available Volumes: cio-
Institute of Rural Management, Available Volumes: Vol.98-99,1991-92
Space Applications Centre (SAC), Available Volumes: Vol.68,1971-(missing: Vol.68,No.1-4; Vol.71,No.5,6; Vol.72,No.1-6; Vol.76,No.4; Vol.78,No.2; Vol.79,No.3; Vol.85,No.1-6; Vol.86,No.1-6; Vol.87,No.2-4,66; Vol.88,No.3-6; Vol.89,No.6; Vol.90,No.1-2,5,9; Vol.91,No.9; Vol.92,No.3-6; Vol.93,No.2-4,6-12; V)
Punjab Agricultural University, Ludhiana, Available Volumes: Vol.49,1961;Vol.52,1963;Vol.58-60,1966-1971;Vol.63-65,1971;Vol.68-69
