共 13 条
[9]
Nonfarm income diversification and household livelihood strategies in rural Africa: concepts, dynamics, and policy implications[J] . C.B Barrett,T Reardon,P Webb.Food Policy . 2001 (4)
[10]
Wage and labor supply effects of illness in C?te d’Ivoire and Ghana: instrumental variable estimates for days disabled[J] . T.Paul Schultz,Aysit Tansel.Journal of Development Economics . 1997 (2)