Graviation

āĻ–ুāϚāϰো āĻŦিāĻĒāĻŖāύāĻ­িāϤ্āϤিāĻ• āφāĻ•āϰ্āώāĻŖ āĻŦāϞেāϰ āĻŦিāĻļ্āϞেāώāĻŖ āϏāĻŽ্āĻĒāϤি( The Retall Trade Graviation Analysis Method)

āĻ–ুāϚāϰো āĻŦিāĻĒāĻŖāύāĻ­িāϤ্āϤিāĻ• āφāĻ•āϰ্āώāĻŖ āĻŦāϞেāϰ āĻŦিāĻļ্āϞেāώāĻŖ āϏāĻŽ্āĻĒāϤি( The Retall Trade Graviation Analysis Method) āϏাāĻŽ্āĻĒ্āϰāϤিāĻ• āĻ•াāϞে āĻ…āĻ­িāĻ•āϰ্āώ āĻĒāĻĻ্āϧāϤিāϤে āφāĻž্āϚāϞিāĻ• āϏীāĻŽাāύা āύিāϰ্āϧাāϰāĻŖ…