Analisis Cluster Sebaran Hara Makro dan Rekomendasi Pemupukan untuk Tanaman Tebu (Saccharum officinarum Linn.) - Basuki Basuki; Benito Heru Purwanto; Bambang Hendro Sunarmito; Sri Nuryani Hidayah Utami (Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI, 2015)