Analysis of information sources in references of the Wikipedia article "Vòng loại Giải vô địch bóng đá thế giới 2018 – Khu vực châu Á" in Vietnamese language version.
Completing the tournament's qualifying contenders will be the next 16 highest ranked teams, with the remaining 12 sides battling it out in play-off matches to claim the last eight spots.
Completing the tournament's qualifying contenders will be the next 16 highest ranked teams, with the remaining 12 sides battling it out in play-off matches to claim the last eight spots.
