Synthesis Sensitive Layer of Ethylene Gas Sensor Based Tin Oxide Nanoparticles Using Water as Solvent In Precipitation MethodErica Caesariaty Harni Prima Nabena, Brian Yuliarto, Nugraha and Muhammad IqbalMATEC Web of Conferences, 159 (2018) 01060DOI: https://doi.org/10.1051/matecconf/201815901060