Procedure to get visa to bangkok, singapore, malasia, indonasia?

First off no one can tell you unless you give some information. Like what country you hold a pport with and how long you plan to be in these countries. You want someone to do your leg work for you. You need to goggle the website for the emby of each of these countries in your country. For example if your from India, you would goggle "Thai Emby in India" then look for the visa section for information. It's very simple. Also ask about visa requirements for Singapore, Malaysia and Indonesia in a Thai Travel Section makes no sense.