Asnawi, A., Nawawi, A., Kartasasmita, R. E. and Ibrahim, S. (2013) “Demethylation of Quinine Using Anhydrous Aluminium Trichloride”, Journal of Mathematical and Fundamental Sciences, 43(1), pp. 43-50. doi: 10.5614/itbj.sci.2011.43.1.4.