Indonesia–Malaysia border crossings. Illegal immigrants are also known to use such crossings. There are numerous scheduled sea crossings between Indonesia and Malaysia, mostly between ports in the former's island of Sumatra and Peninsula Malaysia. Here is a list of ports (Indonesian port followed by the Malaysian port) where scheduled boat services operate as of April 2008: Sumatra-Peninsula Malaysia North Kalimantan-Sabah Indonesia–Malaysia border The border between the Southeast Asian countries of Indonesia and Malaysia consist of both a land border separating the two countries' territories on the island of Borneo as well as maritime boundaries along the length of the Straits of Malacca,
Brunei particularly religious schools, and also in institutes of higher learning. As of 2004, there are six Arabic schools and one religious teachers' college in Brunei. A majority of Brunei's Muslim population has had some form of formal or informal education in the reading, writing and pronunciation of the Arabic language as part of their religious education. The culture of Brunei is predominantly Malay (reflecting its ethnicity), with heavy influences from Islam, but is seen as much more conservative than Indonesia and Malaysia. Influences to Bruneian culture come from the Malay cultures of the Malay Archipelago. Four periods of cultural influence