Mat Husin, Amri Nurhakim, Nurul Atifah Azmi, Nurul Hanis Mohd Sabari, Mohamad Haniki Nik Mohamed, Nurul Ain Mohammad Hamdi, and Muhammad Salahuddin Haris. 2023. “A Systematic Review on Effectiveness of Nicotine-Based and Non- Nicotine Based Drug Delivery System for Smoking Cessation Among the Elderly”. Malaysian Journal of Medicine and Health Sciences 19 (1):232-41. https://doi.org/10.47836/mjmhs.19.1.31.