2009 Preparation of activated carbon from peat Uraki, Y.; Tamai, Y.; Ogawa, M.; Gaman, S.; Tokurad, S.
2008 Improvement of early growth of two tropical peat-swamp forest tree species Ploiarium alternifolium and Calophyllum hosei by two arbuscular mycorrhizal fungi under greenhouse conditions Turjaman, M.; Tamai, Y.; Sitepu, I.R.; Santoso, E.; Osaki, M.; Tawaraya, K.