Rujukan Sungai_Brantas

  1. ↑ Ramu, Kikkeri (December 2004). "Brantas River Basin Case Study, Indonesia" (pdf). Background Paper. Worldbank: 36. 
  2. ↑ Whitten, T; Soeriaatmadja, R. E.; Suraya A. A. (1996). The Ecology of Java and Bali. Hong Kong: Periplus Editions Ltd. m/s. 132. 

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