Affiliation: | 1.Department of Civil Engineering, Papua New Guinea University of Technology, Lae, Papua New Guinea ;2.UN Volunteering, Stanley, NB, E6B 2K5, Canada ;3.UN Volunteering Morobe Development Foundation, Lae, 00411, Papua New Guinea ;4.Chemistry Department, Federal University of Pernambuco, Recife, Brazil ;5.Inversiones Gamma S.A., UNPD Crisis Response Unit, Havana, Cuba ; |