Development of a GIS based hazard, exposure, and vulnerability analyzing method for monitoring drought risk at Karachi, Pakistan oleh Adil Dilawar, Baozhang Chen, Arshad Ashraf, Kayiranga Alphonse, Yawar Hussain, Shoaib Ali, Jiang Jinghong, Muhammad Shafeeque, Song Boyang, Xiaohong Sun, Saddam Hussain