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| Perum Jasa Tirta I |
| Alamat: Jl Surabaya No. 2A, Malang - 65115 PO. BOX 39 |
| Telepon: 0341- 551 971 |
| Fax: 0341- 551 976 |
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| Email: mlg@jasatirta1.co.id |
| Website: www.jasatirta1.go.id |
| Profil |