| Surabaya |
Jl. Ngagel Jaya Selatan I/14
Surabaya 60283, Indonesia |
| T (62 31) 502 8280, 502 3291 |
| F (62 31) 502 0293 |
| Email : wkcsby@wkcnet.com |
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| Semarang |
Jl. Brigjen Sudiarto
Semarang 50161, Indonesia. |
| T (62 24) 670 2500 |
| F (62 24) 670 2400 |
| Email : wkcsmg@wkcnet.com |
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