A. P. Mutanyagwa, A. Isinika, and A. R. Kaliba , Trans., “The factors influencing farmers’ choice of improved maize seed varieties in Tanzania”, int.jour.sci.res.mana, vol. 6, no. 04, pp. AH–2018, Apr. 2018, doi: 10.18535/ijsrm/v6i4.ah01.