Nigeria (1) Pruning (1) Assaying (1) Agriculture (1) Communication (1) Observations (1) Observations (1) Urban poor (1) Solanum (1) Production (Economic theory) (1) Poor (1) Men (1) Mass media (1) Hypothesis (1) Head (1) Gender (Musical instrument) (1) Capital (1) Average (1) Addition (1) Use studies (1) Use studies (1) Technique (1) Women (1) Analysis (1) Sexual behavior (1) Sampling (1) Relations with women (1) Labor productivity (1) Trabajo--Productividad (1) Toma de muestras (1)