a letter from Messrs. Preece, Cardew & Rider, enclosing a copy of their correspondence with the trade facilities committee and the Malay and Eastern power develpment company respecting the proposed hydro-electric undertaking in Perak  [microform article] 

 - London :  Public Record Office,  [n.d] 
<br/><br/> PTSL : Koleksi Media  Page 183  12 March 1926