PETITA is a journal managed by the Faculty of Law, Riau Islands University, Batam. PETITA is a publication for the dissemination of research results related to legal science as outlined in the form of articles. Articles published in PETITA are articles that are the result of research and have never been published in other journals. PETITA is published twice a year on July and Desember. The journal registered in the CrossRef with Digital Object Identifier (DOI) prefix 10.33373.

Please read these guidelines carefully. Authors who want to submit their articles to the editorial office of Jurnal PETITA should obey the writing guidelines. If the articles submitted is not appropriate with the guidelines or written in a different format, it will BE REJECTED by the editors before further reviewed. The editors will only accept articles that meet the assigned format.

PROFISIENSI: The Journal of the Industrial Engineering Study Program is a journal of scientific publications in the field of industrial engineering, both research and scientific studies. Manuscripts received are manuscripts of research results or ideas related to industrial engineering that have not been published in any media, this journal is published twice a year.

PYTHAGORAS: Jurnal Program Studi Pendidikan Matematika (e-ISSN: 26157926) is one of the accredited mathematics education journals (SINTA 4). PYTHAGORAS: Jurnal Program Studi Pendidikan Matematika welcomes scientific articles of research or theoretical studies (invited authors) in the field of mathematics education. All submitted articles shall never be published elsewhere, and not under consideration for other publications. PYTHAGORAS: Jurnal Program Studi Pendidikan Matematika is published by Universitas Riau Kepulauan twice a year; April and October. All published articles in PYTHAGORAS: Jurnal Program Studi Pendidikan Matematika feature a Digital Object Identifier (DOI) with a DOI Prefix: 10.33373 by Crossref and have been indexed by a number of indexing institutions, such as GARUDA, Google Scholar, etc.

Therefore, we invite authors, students (undergraduate, magister, doctoral), teachers, lecturers, practitioners, and observers of mathematics education to publish their manuscripts to PYTHAGORAS: Jurnal Program Studi Pendidikan Matematika. Please kindly see the Author Guidelines and use the article template in writing your manuscripts before submission to PYTHAGORAS: Jurnal Program Studi Pendidikan Matematika.