Purwaningsih S, Falah HS, Lestari N, Sitinjak H, Mousa A. WAVELENGTH OF THE He-Ne LASER BY USING TWO TYPES OF DIAPHRAGM DIFFRACTION METHODS. Jur. Ilmh. Ilm. Ter. Un. Ja [Internet]. 2024May14 [cited 2024Jul.22];8(1):231-9. Available from: https://online-journal.unja.ac.id/JIITUJ/article/view/32058