Ulvan, A., Iryani, D A., & Ulvan, M. The 4th International Conference on Science, Technology and Interdisciplinary Research (IC-STAR 2018): 29-30 August 2018, Bangka-Belitung Province, Indonesia. [Bristol]: IOP Publishing.

The 4th International Conference on Science, Technology and Interdisciplinary Research (IC-STAR 2018) : 29-30 August 2018, Bangka-Belitung Province, Indonesia / editorial board: Ardian Ulvan (Dept. of Electrical Engineering, University of Lampung, Indonesia), Dewi Agustina Iryani (Dept. of Chemical Engineering, University of Lampung, Indonesia), Melvi Ulvan (Dept. of Electrical Engineering, University of Lampung, Indonesia) . — [Bristol] : IOP Publishing. — 1 Online-Ressource; Illustrationen. — (IOP conference series Materials science and engineering ; volume 532 (2019))

Ulvan, Ardian, Dewi Agustina Iryani, and Melvi Ulvan. The 4th International Conference On Science, Technology and Interdisciplinary Research (IC-STAR 2018): 29-30 August 2018, Bangka-Belitung Province, Indonesia.[Bristol]: IOP Publishing.