PERUMIN 33 Mining Convention, chimwe chezviitiko zvakakosha zvemigodhi munyika.Mamaneja edu ekutengesa akaenda kumitambo yekutengeserana munaGunyana 18-22 2017 paPublic University yeSan Agustin (Arequipa) Nguva yekutumira: Nov-22-2018