TY - BOOK AU - Maina, Stephen Wambugu TI - System design and scalability of farmer field schools and rainforest alliance certification of smallholder tea producers East and West of Kenya's Rift Valley AV - SB 269 .K46M35 PY - 2013/// CY - Njoro PB - Egerton University KW - Farmers Field Schools--Tea Production--Kenya ER -