Complete introduction Of Day 3 and Day 4- Group testing Officer – Group discussion Group planning. Lui Kreyszig 2 months ago Complete introduction Of Day 3 and Day 4- Group testing Officer – Group discussion https://www.gyanodhan.com/video/9.%20SSB2/256.%20Complete%20introduction%20Of%20Day%203%20%26%20Day%204-%20Group%20testing%20Officer%20-%20Group%20discussion%20%20%20Group%20planning.mp4