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*Ayako Izuno
Graduate School of Agriculture, Kyoto University
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Sapto Indrioko
Gadjah Mada University, Indonesia
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Eko Prasetyo
Gadjah Mada University, Indonesia
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Widiyatno .
Gadjah Mada University, Indonesia
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Kasmujiono .
PT Sari Bumi Kusuma, Indonesia
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Yuji Isagi
Graduate School of Agriculture, Kyoto University