Lihat Juga

• practice and progress : L.G. ALEXANDER
  oleh: L.G. ALEXANDER
• Practice and progress : an integrated course for pre-intermediate students / L.G. Alexander
  oleh: Alexander, L.G
  Terbitan: (1980)
• Practice Progress
  oleh: L.G Alexander
  Terbitan: (1975)
• Practic and progress ( supplementary ) / LG. Alexander. --
  oleh: Alexander, LG
• Practice And Progress : An Integrated Course For Pre Intermediate Students/ L.G Alexander .-- cet.8
  oleh: Alexander, L.G
  Terbitan: (1987)