M. Utama
Center for Research and Development of Isotopes and Radiation Technology, National Nuclear Energy Agency, Jl. Cinere Ps. Jumat Jakarta.
Indonesia

Herwinarni Herwinarni
Center for Research and Development of Isotopes and Radiation Technology, National Nuclear Energy Agency, Jl. Cinere Ps. Jumat Jakarta.
Indonesia

M. Sumarti
Center for Research and Development of Isotopes and Radiation Technology, National Nuclear Energy Agency, Jl. Cinere Ps. Jumat Jakarta.
Indonesia

Siswanto Siswanto
Indonesian Biotechnology Research Institute for Estate Crops, Jl. Taman Kecana 1 Bogor
Indonesia

Suharyanto Suharyanto
Indonesian Biotechnology Research Institute for Estate Crops, Jl. Taman Kecana 1 Bogor
Indonesia

S Ruslim
PT. Laxindo Utama, Serang, Banten.
Indonesia