28.74.20 : â«è (¡àÇé¹ÍÒÃì·Ô¤ÔÇàÅàµç´ÅÔ§¡ì) áÅÐÊèǹ»ÃСͺ¢Í§â«è
¤Ó͸ԺÒÂ:
ä´éá¡è: - ·Ó´éÇÂàËÅç¡ËÃ×ÍàËÅç¡¡ÅéÒ- ·Ó´éÇ·ͧᴧ
¡ÒèѴ¨Óṡ·ÕèÁÕ¤ÇÒÁËÁÒÂàËÁ×͹¡Ñ¹