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1प्रकाशित 2000विषय “...Information storage and retrieval systems Geography Congresses....”
पुस्तक -
2प्रकाशित 1989विषय “...Information storage and retrieval systems Geography Congresses....”
सामयिक पत्रिका -
3प्रकाशित 1995विषय “...Information storage and retrieval systems Geography Congresses....”
सम्मेलन की कार्यवाही पुस्तक