Nst, Zuhairiah, Nerdy Nerdy, and Rifoni Simbolon. 2020. “Penerapan Serta Validasi Metode Spektrofotometri Inframerah Pada Penetapan Kadar Ibuprofen Dalam Sediaan Tablet”. Herbal Medicine Journal 3 (2), 30 - 38. https://doi.org/https://doi.org/10.58996/hmj.v3i2.24.