Bridging the national data gap with Google earth engine and landsat imagery by developing annual land cover for Afghanistan oleh Kabir Uddin, Sayed Burhan Atal, Sajana Maharjan, Birendra Bajracharya, Waheedullah Yousafi, Timothy Mayer, Mir A. Matin, Bandana Shakya, David Saah, Peter Potapov, Rajesh Bahadur Thapa, Bikram Shakya