Road signs in Indonesia the rules are not being implemented properly. Indonesian road signs use Indonesian, the official and the national language of Indonesia. However, English is also used for important public places such as tourist attractions and airports. Bilingual signs can be found in tourist areas such as Bali. Indonesia signed the Vienna Convention on Road Signs and Signals but have yet to ratify the Convention. Warning signs warn of possible dangers or unusual conditions ahead and alert motorists on the hazards to expect. Warning signs in Indonesia used to closely follow The American MUTCD and Japanese diamond-shaped with yellow background and black-and-yellow
Indonesia Handbook Japenpa Foreign Languages Publishing Institute. In 1996 the title "Indonesia Handbook" was used for a new guide book by Footprint Books, publisher of the "South American Handbook". Indonesia Handbook Bill Dalton's Indonesia Handbook, published by Moon Publications in California, was the main English language tourist guide book for the whole of Indonesia between the 1970s and the 1990s. The book originated in 1973 as a typewritten publication, "A Traveler's Notes: Indonesia", printed by Dalton when he was travelling in Australia. This led Dalton to form his company, Moon Publications, when he returned to California, and expand and publish his Travel