Moira Lunge & Joseph O. Espi 2021. Geochemistry of Sulphides from Papua New Guinea: Golpu and Nambonga North Porphyry Cu-Au Deposits, Wafi-Golpu Mineral District. Current Advances in Geography, Environment and Earth Science Vol. 1. (Dec. 2021), 101–138. DOI:https://doi.org/10.9734/bpi/cagees/v1/2107C.