Sanghavi BJ, Srivastava AK (2010). "Simultaneous voltammetric determination of acetaminophen, aspirin and caffeine using an in situ surfactant-modified multiwalled carbon nanotube paste electrode". Electrochimica Acta. 55 (28): 8638–8648. doi:10.1016/j.electacta.2010.07.093.