Extraction of chitin and chitosan from Malaysian cephalopods “Sotong mengaban” (Sepioteuthis lessoniana) and “Sotong jarum” (Loligo vulgaris) - Khan Chowdhury, Ahmed Jalal; Mohd Salleh, Mohd Hazman; Darnis, Deny Susanti; John, Akbar; Daud, Jamaluddin (IIUM Press, 2011)