R. adawiyah, S. Laili, and A. Syauqi, “Uji Kualitas Air Sungai Bengawanjero Di Desa Bojoasri Kecamatan Kalitengah Kabupaten Lamongan: Water Quality Test of Bengawanjero River in Bojoasri Village of Kalitengah District of Lamongan Regency”, BIOSCIENCE TROP, vol. 3, no. 3, pp. 1–9, Aug. 2017.