Polytechnic Journal started its online OA version since January 2019


Since January 2019, Polytechnic Journal with e-ISSN: 2707-7799 & p-ISSN: 2313-5727 started to publish its original research articles on the Open Journal System (OJS-PKP) platform with a digital object identifier from Crossref, https://doi.org/10.25156/ptj, as an open access journal makesthe published articles available for the public free of charge. The earlier version of the published volumes are available as hard copies.