Phan Thanh Tam, Nguyen Hai Van, and Nguyen Ngoc Hieu. “Research on the Production of High-Purity Calcium Lactate from Poultry Eggshells and Their Application in Food ”. Vietnam Journal of Science, Technology and Engineering, vol. 67, no. 2, June 2025, pp. 67-73, doi:10.31276/VJSTE.2024.0054.