List of Articles propensity score matching Open Access Article Abstract Page Full-Text 1 - Impact of Small-Holders’ Cattle Fattening on Household Income Generation in Fadis District of Eastern Hararghe Zone, Oromia, Ethiopia Jafer Mume Fikadu Tadesse Open Access Article Abstract Page Full-Text 2 - Does Participation in Farmer Field School Extension Program Improve Crop Yields? Evidence from Smallholder Tea Production Systems in Kenya جسیاه آتکا پپرز اونونو مارتین اتیانگ 20.1001.1.21595852.2019.9.4.9.3