Anyone who is travelling to Malaysia from Indonesia should adhere to the security processes. All the legal documents to prove that you are an Indonesian citizen should be carried. The passport is the most important document to be carried. If a minor is travelling then a passport or the name of the minor should be listed in the parent's passport. Indonesian nationals do not need a visa for Malaysia if they do not stay for more than 30 days. For those who plan to stay for more than 30 days, you have to show that you have enough money to stay in the country. So an Indonesian should show 6042500 Indonesian Rupiah in their bank account.