Jurnal Pemikiran dan Penelitian Pendidikan Matematika (JP3M) is one of the service journals managed by Pusat Penelitian dan Pengembangan Rekarta Mataram. First published August 2018 with SK ISSN LIPI No.0005.26228246/JI.3.1/SK.ISSN/2018.08
Then December 2019, website https://journal-litbang-rekarta.co.id/ hacked by irresponsible people, so that all file publications since January 2019 were totally lost. Furthermore, the Rekarta IT R&D team installed OJS 3 from the beginning and re-uploaded the papers that had been published previously. This makes the track record of each paper erased and lost.