Naqeebullah Khan, Samiullah, Atta Muhammad, Attiq-Ur-Rehman,, Abdullah Jan zeerak, Muhammad Asghar, Abdul Baqi,, AND Hayatullah, Mohammad Hussain,. " 79. Spectrophotometric determination of phenolic antioxidants in four varieties of apples (Pyrus malus) from Balochistan, Pakistan" Pure and Applied Biology (PAB) [Online], Volume 8 Number 1 (6 March 2019)