Nguyen TD, Tran VTA, Vo DTT, et al. DEVELOPMENT OF AN ARTIFICIAL NEURAL NETWORK MODEL FOR RAPID DETERMINATION OF NAOH SOLUTION CONCENTRATION USING THE TRANSMISSION SPECTRUM OF LOW-ENERGY GAMMA RAYS AT 59.54 KEV. TCKH ĐHSP TPHCM TPHCM. 2026;23(1):150-162. doi:10.54607/hcmue.js.23.1.5093(2026)