International Journal on Advanced Science, Engineering and Information Technology

Prasetyo, T.B., Department of Soil Science, Faculty of Agriculture, Andalas University Limau Manis, Padang, West Sumatra, Indonesia, Indonesia

• Vol 8, No 5 (2018) - Articles
  The Role of Powder Sub-bituminous Coal with Sodium Hydroxide (NaOH) to Improve Chemical Properties of Ultisols
  Abstract  PDF