@article{IPI2191058, title = "Back Matter JPPPF Volume 7 Issue 1, July 2021", journal = "Program Studi Pendidikan Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI", volume = "Vol 7 No 1 (2021): JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika), Volume 7 Issue 1, J", pages = "", year = "2021", url = http://journal.unj.ac.id/unj/index.php/jpppf/article/view/22431/11111 author = "Editor JPPPF", abstract = "", }