1. The use of TIO2 -sio2 in photocatalytic process to degrade toxic and dangerous waste 2. flafonoid coumpounds form the bark of aglaia eximia 3. Isolation of asphaltena-degrading bacteria form sludge oil 4. Effects of nitrate and salinity on fatty acid composition 5. The molecular diversity-based 6. Leaf trichome morphology of durio kutejensis landraces from Kalimantan