25th Edition
Sumatra, Jambi province: Sarolangun and Batang Hari regencies, 2 enclaves, eastern swamp region; Riau province: Indrigiri Hulu regency, Batang Cenaku, Alim, Batu Papan, and Sungai Pampan; South Sumatra province: Musi Banyuasin regency.
