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 resaerch 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 without Article Proccessing Charge (No APC). The earlier version of the published volumes are available as hard copies and their titles are available online.