%0 Journal Article %A %D 2020 %J International Journal of Chemistry and Materials Research %@ 2311-763X %V 8 %N 2 %P 54-68 %T Investigation of the Spatial and Temporal Variations in the External Nutrient Loads of Lake Ziway in Relation to the Effects of Climatic and Hydrological Factors %M 10.18488/journal.64.2020.82.54.68 %U http://www.pakinsight.com/archive/64/12-2020/2