Sharma, Alka, Sushma Verma, Suhail Khan, and Syed Akhlaque Ahmed. “Buccal Drug Delivery System: A New Hope for High Drug Bioavailability”. International journal of health sciences 6, no. S5 (June 22, 2022): 3860–3883. Accessed June 29, 2026. https://sciencescholar.us/journal/index.php/ijhs/article/view/9456.