Bostang Radjagukguk
MAgrSc (Qld) PhD (WestAust)
Retired Professor of Soil Science
Faculty of Agriculture
Gadjah Mada University
Bulaksumur, Yogyakarta
INDONESIA
E-mail: [email protected]
Faculty of Agriculture
Gadjah Mada University
Bulaksumur, Yogyakarta
INDONESIA
E-mail: [email protected]