00591cam a22002291 4500 sa 65001779 DLC 20260227112111.0 940615s1963 ii a 000 0 beno sa 65001779 PL480:EP-B-606 (OCoLC)30612848 DLC CU CU DLC premarc QB52 .K45 Khan, Muhammad Salamatullah. Pr̥thibī sthira. Notion on the earth and sun. Dacca, 1963. 9, 84 p. ill. 24 cm. In Bengali. Solar system. 62224 62224