Luthfi Aziz Mahmud Siregar
Prof. Luthfi Aziz Mahmud Siregar, SP., M.Sc., Ph.D.
197307122005021006
0012077303
5044751652130143
luthfi1@usu.ac.id, luthfi2004@yahoo.com
Office of the Vice Dean 2, 2nd Floor, Main Building, Faculty of Agriculture, Universitas Sumatera Utara (USU).