Minh Nguyet, Ton, Le Viet Man, and Do Mai Khoi. “PROLONGING SHELFLIFE OF PIA CAKE”. Science and Technology Development Journal 8, no. 6 (June 30, 2005): 18-24. Accessed November 23, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/3002.