SPEKTRA: Jurnal Fisika dan Aplikasinya allows authors to archive all versions of their work in an institutional or subject repository. This policy outlines how SPEKTRA authors can self-archive versions of their work on their own websites, institutional websites, and in another repository. The table below provides further clarification.

Article Version	Personal Website	Institutional or non-Commercial subject-based repository	Commercial platforms and social media
Submitted version	At any time	At any time	At any time
Accepted version (Author Accepted Manuscript)	At any time	At any time	At any time
Published version (Version of Record)	At any time	At any time	At any time