கேள்வி: சிபுத்து நீரிணை - நூல்கள் பற்றி தகவல் சொல்.
பதில்: * ''Philippine Islands Sailing Directions'', third edition of the bulletin prepared in the office of the U.S. Coast and Geodetic Survey at Manila by Harry L. Ford, nautical expert (Washington, DC: Bureau of Printing, 1906), p.&nbsp;171 * Lambert Anthony B. Meñez, Cesar L. Villanoy and Laura T. David. "Movement of Water Across Passages Connecting Philippine Inland Sea Basins" (Marine Science Institute, University of the Philippines, November 6, 2006)