When coal turned gold.

समान संसाधन

• When coal turned gold - the making of maharatna company
  द्वारा: Bhattacharyya, P
  प्रकाशित: (2018)
• The Story Behind Coal
• THE STORY BEHIND COAL
  द्वारा: SOMERVIL BARBARA
  प्रकाशित: (2019)
• Chemistry and technology of coal
  द्वारा: Speight, J
  प्रकाशित: (1994)
• Turning garbage into Gold : an introduction to vermiculture biotechnology
  द्वारा: Bhawalkar, Uday
  प्रकाशित: (1993)