@book{41589,
	author = {Vijayan, S. and Navaratnam, V.},
	title = {Chromatographic methods for the detection of the principal cannabinoid metabolite in urine /},
	publisher = {Pusat Penyelidikan Dadah dan Ubat-ubatan,},
	year = {1990},
	address = {Pulau Pinang :}
}