Hung Pham Van, Tung Nguyen Thanh, Nhat Hoang Thi Anh, Hieu Bui Trung, Uyen Dinh Thi Thu, Duyen Nguyen Thi Thanh*, “Development of sustained-release floating tablets of diltiazem hydrochloride”, VJSTE, vol. 67, no. 4, Dec. 2025.