“Extraction of Chitosan from Parapenaeus Longirostris Shells and Identification of Functional Groups Using FT-IR Spectroscopy”. 2026. Latakia University (formerly Tishreen) Journal for Research and Scientific Studies - Basic Sciences Series 48 (2): 145-57. https://journal.latakia-univ.edu.sy/index.php/bassc/article/view/21313.