Proceedings of the International Conference on Natural Resources and Sustainable Development Acronym: ICNRSD 2018 Event held on: August 25-25, 2018, in Medan, Indonesia Editors: Antonia Soriente 1 , Junji Nakamura 2 , Nor Hashimah 3 , I Komang Damar Jaya 4 , Yusni Ikhwan Siregar 5 , Mohammad Basyuni 6 and Iskandar Muda 6 Affiliations: 1 University of Naples L’Orientale, Italy , 2 Tsukuba University, Japan , 3 Universiti Kebangsaan Malaysia, Malaysia , 4 Universitas Mataram, Indonesia , 5 Universitas Riau, Indonesia , 6 University of Sumatera Utara, Indonesia ISBN: 978-989-758-543-2