Periodicals of Engineering and Natural Sciences (PEN)

Periodicals of Engineering and Natural Sciences (ISSN: 2303-4521) is an international open access single-blind review journal published online.

Publication frequency: Semiyearly (1. January - June; 2. July - December).

Publication Fees: No fee required (no article submission charges or processing charges).

Digital Object Identifier DOI: 10.21533/pen


Vol 5, No 2 (2017)


Cover Page