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