Tag: โจทย์โอลิมปิก

TOI14-d1-NBK48 TOI14-d1-Plantation TOI14-d1-Space TOI14-d2-Blockchain TOI14-d2-Logistic TOI14-d2-Technology

http://www.nattapon.com/wp-content/uploads/2019/06/TOI13-ข้อสอบการแข่งขันTOI13.pdf

http://www.nattapon.com/wp-content/uploads/2019/06/TOI12-Day1_1_peak.pdf http://www.nattapon.com/wp-content/uploads/2019/06/TOI12-Day1_2_key.pdf