https://ejournal3.unira.ac.id/index.php/jurnal_sigma/issue/feedSIGMA2025-08-17T12:43:54+00:00Moh. Zayyadizayyadi@unira.ac.idOpen Journal Systems<div class="journal-description"><p> </p><table width="100%" border="0" cellspacing="10" cellpadding="4"><tbody><tr valign="top"><td width="20%"><p><img src="/public/site/images/matematikamanaj/SIGMA_BARU2.png" alt="" /></p></td><td width="40"> </td><td valign="top" width="100%"><table class="data" width="100%"><tbody><tr valign="top"><td width="20%">Journal title</td><td width="40">: SIGMA</td></tr><tr valign="top"><td width="20%">Initials</td><td width="40">: SIGMA</td></tr><tr valign="top"><td width="20%">Frequency</td><td width="40">: 2 Issues every year (September and Maret)</td></tr><tr valign="top"><td width="20%">DOI</td><td width="40">: Prefix <a href="https://doi.crossref.org/servlet/publisherUserAdmin?sf=modify&publisherID=87883">10.36513</a> </td></tr><tr valign="top"><td width="20%">P-ISSN (print)</td><td width="40">: <a href="http://issn.pdii.lipi.go.id/issn.cgi?daftar&1449892885&1&&">2502-0919</a></td></tr><tr valign="top"><td width="20%">E-ISSN (online)</td><td width="40">: <a href="http://issn.pdii.lipi.go.id/issn.cgi?daftar&1550657308">2684-7698</a></td></tr><tr valign="top"><td width="20%">Editor-in-Chief</td><td width="40">: <a href="https://scholar.google.co.id/citations?hl=id&user=zrZUc_kAAAAJ">Moh. Zayyadi</a></td></tr><tr valign="top"><td width="20%">Publisher</td><td width="40">: Prodi Pendidikan Matematika, FKIP, <a href="https://unira.ac.id/">Universitas Madura</a></td></tr></tbody></table></td></tr></tbody></table></div><p><strong>We are proud to announce that SIGMA has been accredited by the National Journal Accreditation (ARJUNA) by Decree of Directorate General of Higher Education Ministry of National Education and Culture Republic of Indonesia No. <a href="https://drive.google.com/file/d/1DKHaOAEzEE6Hr-y4VVgGnaybMS_1KquC/view?usp=sharing" target="_blank">30/E/KPT/2019</a> on November 12, 2019 with fourth grade (Sinta 4)</strong></p>