A systematic review on effectiveness of Nicotine-Based and Non-Nicotine Based drug delivery system for smoking cessation among the elderly - Mat Husin, Amri Nurhakim; Azmi, Nurul Atifah; Mohd Sabari, Nurul Hanis; Nik Mohamed, Mohamad Haniki; Mohammad Hamdi, Nurul Ain; Haris @ Harith, Muhammad Salahuddin (UPM, 2023)