共 46 条
[21]
REVIEW ECONOMY SUPPL
[22]
1968, BANK SUDAN 8 ANNUAL
[23]
1968, SUDANESE ECONOM 0700, P14
[24]
1968, SUDANESE ECONOM 0800, P6
[25]
1969, SUDAN NEWS 1009
[26]
1969, BARCLAYS BANK OVERSE
[27]
1968, SUDANESE ECONOM 0700, P47
[28]
1968, SUDAN ALMANAC
[29]
1968, SUDANESE ECONOMIST
[30]
1968, SUDANESE ECONOM 0800, P46