ผู้เขียน: Babak Zolghadr-Asli

OMID BOZORG-HADDAD, Ph D, is Professor in the Department of Irrigation & Reclamation Engineering at University of Tehran, Iran. BABAK ZOLGHADR-ASLI, M.Sc., received the M.Sc. in Irrigation Engineering, Water Resources Management, from Tehran University, Iran. HUGO A. LOÁICIGA, Ph D, is Professor of Geography in the Department of Geography at the University of California, Santa Barbara, USA.