Jeffrey D. Sachs is University Professor at Columbia University.
Jeffrey D. Sachs pulofeesa ku yunivaasite ya Columbia.
Jefrey D. Sachs ni purofeesa omu itendekyero rikuru erya Columbia.
Erai Jeffrey D.Sachs epurofesa koUnibasite loka Columbia.
Jeffrey D. Sachs ni embapi onita be uru tu, omvele Professor, Columbia University-a.
Jeffrey D. Sach obedo profeca me gang kwan me yunibwaciti I Columbia University.