Someone who is an active supporter and advocate
English: promoter, booster, plugger
Bahasa: pengembang, penggerak, pendorong, perangsang, penggalak
promoterEnglish
promoter, booster, impresario, plugger, showman
Noun
A sponsor who books and stages public entertainments
English: showman, promoter, impresario
Bahasa: penganjur