The official websiteDiarkibkan 12 September 2017 di Wayback Machine adopts the "G-15" orthography (with a hyphen) in order to distinguish an abbreviated reference to this group – contrasts with other similarly named entities.
The official websiteDiarkibkan 12 September 2017 di Wayback Machine adopts the "G-15" orthography (with a hyphen) in order to distinguish an abbreviated reference to this group – contrasts with other similarly named entities.