(bl-Ingliż). Miġbur 2023-09-14. ^ Centre, UNESCO World Heritage. "PhongNha-KeBangNationalPark". UNESCO World Heritage Centre (bl-Ingliż). Miġbur 2023-09-14
(bl-Ingliż). Miġbur 2023-09-14. ^ Centre, UNESCO World Heritage. "PhongNha-KeBangNationalPark". UNESCO World Heritage Centre (bl-Ingliż). Miġbur 2023-09-14