Purwaningsih, S., H. S. Falah, N. Lestari, H. Sitinjak, and A. Mousa. “WAVELENGTH OF THE He-Ne LASER BY USING TWO TYPES OF DIAPHRAGM DIFFRACTION METHODS”. Jurnal Ilmiah Ilmu Terapan Universitas Jambi, vol. 8, no. 1, May 2024, pp. 231-9, doi:10.22437/jiituj.v8i1.32058.