抽象的

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Addisu Demeke、Ayalew Taye、Asmelash Tassew 和 Dereje Bantigegn

????? 2013 ? 12 ?? 2014 ? 4 ?? Bishoftu ? ELFORA ??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? 430 ???? 430 ?????????????????????? 860 ????????? 419 ??48.7%????318 ??37.0%????50 ??5.8%????94 ??10.9%???? 53 ??6.2%??????????????115 ??13.4%????? 142 ??16.5%???? 190 ??22.1%????? 26 ??3.0%???? 33 ??3.8%???? 21 ??2.4%???????????????????????????????????????????????????????????? 142 ??16.5%??20 ??2.3%??14 ??1.6%?? 51 ??5.9%???????????????????????????????????p<0.05??? ELFORA ???????????????????????????????? 16,007,448.2 ETB?827,686.05 ???????????????????????????????????????????