ืฆื™ืจื™ื ืกืžื•ื™ื™ื. ืฆื™ืจ ืกืžื•ื™ ื›ืืฉืจ ื”ื“ืœืช ืกื’ื•ืจื” ื”ื•ื ืื™ื ื• ื ืจืื”. ืฆื™ืจ ืกืžื•ื™ ืœื“ืœืช, ืฆื™ืจ ืกืžื•ื™ ืœืืจื•ืŸ. ืฆื™ืจ ืกืžื•ื™ ืกื•ืก (SOSS).