Upscaling of Surface Water and Groundwater Interactions in Hyporheic Zone from Local to Regional Scale oleh Naseem Akhtar, Muhammad I. Syakir, Mardiana Idayu Ahmad, Mohd Talha Anees, Ahmad Farid Bin Abu Bakar, Syed Adil Mizan, Sami Farraj Alsaadi, Mohammad Muqtada Ali Khan, Mohamad Shaiful Md Yusuff