Vào đây nếu có thời gian oln mỗi ngày!
http://mmo4me.com/threads/tuyen-ref-site-ptc-co-gia-click-khung-reback-tai-cho-newbie-khong-nen-bo-qua.181259/
http://mmo4me.com/threads/tuyen-ref-site-ptc-co-gia-click-khung-reback-tai-cho-newbie-khong-nen-bo-qua.181259/
