Franklin, W Dixen පිඹින සර්පයාගේ හෝඩුවාව = Pibina sarpayage hoduwawa - Mulleriyawa Wijesuriya Grantha Kendraya 2005 - 183p. ISBN: 9556522336 = The Hardy Boys - The clue of the Hissing Serpent Universal Decimal Class. No.: 82-31=214.61 / D39