8 scirep 3 scirepk 1 scirepk_a2017m6v3n378 1 scirepk_a2017m7v7n6777 1 scirepk_a2017m8v7n8994 - Scirepk_a3017m6v3n378 5 scirepuk 2 scirepuk_a2017 2 scirepuk_a2017m1 1 scirepuk_a2017v7 2 scirep_a2017m10v7