Coal quandary

समान संसाधन

• Hauled over the coals
  द्वारा: Soumik Dey
• When coal turned gold : the making of a Maharatna company /
  द्वारा: Bhattacharyya, Partha Sarathi
  प्रकाशित: (2018)
• Textbook of coal
  द्वारा: Chandra, D
  प्रकाशित: (2000)
• Coal geology /
  द्वारा: Thomas, Larry
  प्रकाशित: (2013)
• Coal toll