Recent innovations Baidar Bakht creator text monographic vii, 152 p. ill. 24 cm. Baidar Bakht 0 0 0 624_200000000000000_BAI 0 0 0 624_200000000000000_BAI 0 0 0 624_200000000000000_BAI 0 0 0 624_200000000000000_BAI 0 0 0 624_200000000000000_BAI 0 0 0 624_200000000000000_BAI 0 0 0 624_200000000000000_BAI 0 0 0 624_200000000000000_BAI 0 0 0 624_200000000000000_BAI D 624.2 BAI