共 27 条
[1]
ARMSTRONG RG, 1955, PEOPLES NIGER-BENUE, P77
[2]
BEHREND H, 1959, INT LABOUR REV FEB
[3]
BERG E, 1959, LABOR EC DEV
[4]
BIESHEUVEL S, 1952, OPTIMA
[5]
BOHANNAN P, 1954, TIV FARM SETTLEMENT, P51
[6]
BROWNE JO, 1946, LABOUR CONDITIONS E
[7]
BROWNE JO, 1933, AFRICAN LABOURER
[8]
Gluckman Max, 1941, EC CENTRAL BAROTSE P
[9]
GUSSMAN B, 1953, IND EFFICIENCY URBAN
[10]
HEIGHAM J, 1953, PRODUCTIVITY LABOUR