Artha Paulina Simamora, and Mangasi Alion Marpaung. “ANALYSIS OF ELEMENTAL DIFFERENCES IN GREEN SPINACH (AMARANTHUS VIRIDIS) BETWEEN CONVENTIONAL AND HYDROPONIC CULTIVATION METHODS USING LASER-INDUCED BREAKDOWN SPECTROSCOPY (LIBS) METHOD: ANALISIS PERBEDAAN UNSUR DALAM BAYAM HIJAU (AMARANTHUS VIRIDIS) ANTARA METODE BUDIDAYA KONVENSIONAL DAN HIDROPONIK DENGAN MENGGUNAKAN METODE LASER INDUCED BREAKDOWN SPECTROSCOPY (LIBS)”. PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL), vol. 13, no. 1, Jan. 2025, pp. FA-108, doi:10.21009/03.1301.FA15.