southeast asia physical featuresVersion en ligne southeast asia physical features par Laila Ochsner 1 irrawaddy river 2 mekong river 3 salween river 4 bay of bengal 5 gulf of thailand 6 philippine sea 7 south china sea 8 sunda strait 9 java sea 10 annamese mts 11 strait of malacca 12 pacific ocean 13 indian ocean 14 mekong delta