Surya, Arifin, Bohari Yusuf, & Aman Sentosa Panggabean. " COMPARISON OF ANALYTIC PERFORMANCE OF RESULTS OF DETERMINATION OF Pb METAL IONS USING ATOMIC ABSORPTION SPECTROPHOTOMETER of VARIOUS in SAMARINDA LABORATORIES." JURNAL KIMIA MULAWARMAN [Online], 19.1 (2021): 17-23. Web. 7 May. 2024