Shanker, Kali उपग्रेह संचार प्रणाली का बढ़ते कदम Upagreh sanchaar pranaalee ka badhata kadam - New Delhi: BPB Publications, 2004 - 225p. ISBN: 9788176568555 Subjects--Topical Terms: Science Universal Decimal Class. No.: 621.371.36 / P4