As a part of ASEAN, Indonesia citizens are exempt from Vietnam visa for 30 days. For stay of longer than 30 days, Indonesian nationals may have 2 options:
- Visit Vietnam embassy in Indonesia
- or apply for a Vietnam visa on arrival to Vietnam from Indonesia online.
Indonesian citizens may apply for both tourist and business visa to Vietnam for the stay of 1 to 6 months from Indonesia. Please check this link for Vietnam visa cost for Indonesian citizens.
All the information for getting a Vietnam visa on arrival or a visa from Vietnam embassy in Indonesia can be found here: http://www.vietnam-visa.com/how-to-apply-vietnam-visa-in-indonesia/