By: Mr KalEng TEACHERS and students of SMAN (state-owned senior high school) 2 of Juai, Balangan Regency, South Kalimantan, have been planting ulin trees (Eusideroxylon zwageri) by mid-2016. Para guru dan siswa/siswi di SMAN 2 Juai, Kabupaten Balangan, Kalimantan Selatan, telah memulai melakukan penanaman bibit pohon ulin (Eusideroxylon zwageri) sejak pertengahan tahun 2016. The trees…