ื™ื•ื ื‘ืงืื ื˜ืจื™ ืขืžื™ืฉื‘ ืกื’ื•ืจ ืœืื‘ืจื›ื™ื ื‘ืœื‘ื“ 6.8 - ืชืจื‘ื•ืช ืชื•ืจื ื™ืช