“Kinerja Biosensor Konduktometri Berbasis (Screen Printed Carbon Electrode) SPCE––Kitosan Untuk Deteksi Diazinon, Malation, Klorpirifos Dan Profenofos”. Jurnal Kimia Valensi, Nov. 2015, pp. 84-90, https://doi.org/10.15408/jkv.v0i0.3156.