Peer review declaration

All papers published in this volume of Journal of Physics: Conference Series have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. • Type of peer review: Double-blind • Conference submission management system: Open Journal System (OJS 3.x) • Number of submissions received: 140 • Number of submissions sent for review: 95 • Number of submissions accepted: 50 • Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100):35.71% • Average number of reviews per paper: 2 times (1 abstract review and 1 fullpaper review) • Total number of reviewers involved:19 Any additional info on review process: There are two review processes in SNF 2020. The first process is abstracts review. Presenter/Authors must submit their abstract to be reviewed SNF 2020 Reviewer (1 Reviewer per abstract). Selected abstracts will be presented in SNF 2020 and send to the full paper review process. After abstract review, SNF 2020 committee held a full paper review. Presenters/Authors must submit the full paper to be reviewed SNF 2020 Reviewer. The paper reviewed by SNF 2020 Reviewer based on the expertise of Reviewer and topic of the paper. Fifty selected manuscript was sent to be published in JPCS IOP. Contact person for queries: Name: Utama Alan Deta Affiliation: Universitas Negeri Surabaya, Indonesia Institutional email address: utamadeta@unesa.ac.id