Darmawati, D., Mustopa, A.Z., Budiarto, B.R., Rahmawati, S.I., Izzati, F.N., Harmoko, R., Saepudin, E. and Mahsunah, A.H. 2022. Development of Gold Nanoparticle (AuNP)-based Colorimetric Aptasensor for Penicillin G Detection. Journal of Engineering and Technological Sciences. 54, 4 (Jul. 2022), 220413. DOI:https://doi.org/10.5614/j.eng.technol.sci.2022.54.4.13.