Pengaruh temperatur dan kelembaban udara pengering terhadap laju pengeringan dan energi aktivasi batubara peringkat rendah = The effect of drying temperature and relative humidity of drying rate and activation energy of low rank coal

Pengaruh variasi suhu udara pengering serta ketebalan batubara terhadap laju pengeringan batubara peringkat rendah low-rank coal = The effect of variation of dryer air temperature and thickness of a coal heap on drying rate of low rank coal

Pengembangan Teknologi Heat Pipe Heat Exchanger sebagai Pemanfaatan Panas Bumi Entalpi Rendah untuk Proses Pengeringan Kopi = Development of Heat Pipe Heat Exchanger Technology as Utilization of Low Enthalpy Geothermal Energy for Coffee Drying Process

Analisis peningkatan nilai tambah batu bara kalori rendah menggunakan teknologi peningkatan mutu batu bara = Low rank coal value enhancement using coal upgrading technology / Qosandra Alfayuritresna

Impacts of low rank coal utilization in the coal fired power plant that was designed to use sub - bituminous coal