AGREISTA VIDYNA QORIAULFA (2016) ANALISIS LIMPASAN LANGSUNG MENGGUNAKAN METODE NAKAYASU STUDI KASUS SUB DAS PROGO HULU (ANALYSIS OF DIRECT RUNOFF USING NAKAYASU METHOD CASE STUDY SUB DAS PROGO HULU). S1 thesis, Universitas Muhammadiyah Yogyakarta.