Gusrizal, G., F. S. Budi, and D. . Puspita. “Determination of Paraquat Using Microfluidic Paper-Based Analytical Device (µPAD) Immobilized With P-Hydroxybenzoic Acid Capped Silver Nanoparticles”. Science and Technology Indonesia, vol. 11, no. 1, Jan. 2026, pp. 323-34, doi:10.26554/sti.2026.11.1.323-334.