Mlozi, MRSSanga, CTumbo, SMussa, MKadeghe, FHaug, R2016-11-292016-11-292016https://www.suaire.sua.ac.tz/handle/123456789/1008EPINAV Policy Brief No. 02/2016enAgricultural extension servicesMobile phonesPolicy briefTanzaniaDelivery of agricultural extension service can be improved through mobile phonesOther