共 50 条
[34]
EXCHANGEABLE SODIUM AND YIELDS OF COTTON ON CERTAIN CLAY SOILS OF SUDAN
[J].
JOURNAL OF SOIL SCIENCE,
1971, 22 (03)
:328-&
[36]
BRUCELLOSIS IN THE GEZIRA AREA, CENTRAL SUDAN
[J].
JOURNAL OF TROPICAL MEDICINE AND HYGIENE,
1989, 92 (02)
:86-88
[40]
GEZIRA - A STORY OF DEVELOPMENT IN THE SUDAN - GAITSKELL,A
[J].
ECONOMIST,
1960, 194 (05)
:417-417