MAIN OFFICE
SURABAYA
Address : Jl. Pacar Kembang 93 Surabaya, East Java Indonesia 60132
Phone : +62 31 389 3880 & +62 81 1155 3326
Email : alter_by@yahoo.com
MALANG
Address : Jl. Halmahera 86
Phone : +62 341 326 237
KEDIRI
Address : Jl. Halmahera 86
Phone : +62 341 326 237
JEMBER
Address : Jl. Kahuripan Blok E No. 2
Phone : +62 331 337 367