Rosnah, R.; Taslim, N. A. .; Aman, A. M. .; Idris, I. .; As’ad, S. .; Bukhari, A. .; Wahyudin, E. . Physicochemical Characteristics of Chicken Eggshell Flour Produced by Hydrochloric Acid and Acetic Acid Extraction. Open Access Maced J Med Sci 2021, 9, 428-432.