Upakar's general knowledge digest/

Eitemau Tebyg

• Wheeler's Concise General Knowledge Digest
  gan: Thorpe, Edgar
  Cyhoeddwyd: (1999)
• Mani Ram Aggarwal's general knowledge digest and general studies /
  gan: Mohan, K.
  Cyhoeddwyd: (2006)
• Tata McGraw-Hill's series general knowledge digest /
  gan: Reddy, Krishnaetc
  Cyhoeddwyd: (2010)
• General knowledge
  gan: Kumar,Purushottam
  Cyhoeddwyd: (2014)
• Drainage digest
  gan: Mathew, E K et al