Anik Eko Novitasari, Ria Ratna Amelia. Analysis Of Mefenamic Acid Residue In Urine Of Herbal Madicine For Aches and Pains Consumers Using Ultraviolet-Visible Spectrophotometry Method. IJHESS [Internet]. 2025Jul.30 [cited 2025Nov.3];7(3):1630-7. Available from: https://jurnal.unismuhpalu.ac.id/index.php/IJHESS/article/view/8922