A. Citraresmini Center for Application of Isotopes and Radiation Technology, National Nuclear Energy Agency
Jl. Lebak Bulus Raya No. 49, Jakarta 12440, Indonesia Indonesia
H. Halim Lambung Mangkurat University
Jl. A. Yani Km. 35,8 Banjarbaru, South Kalimantan, Indonesia Indonesia
E.L. Sisworo Society of Organic Agriculture
Jakarta, Indonesia Indonesia