The difficulties in problem solving of Grade IV pupils in arithmetic in the Division of Pangasinan, 1961-62 [microform] - Cruz, Rufo Perez 1914- (Quezon City Photoduplication Service, University of the Philippines Library, 1975)
Microfilmed with 14 other titles.
Thesis (M.A.)--Northwestern Educational Institution, Daguapn City.
Originally published in 1963.
Keywords: Arithmetic -- Study and teaching (Primary) -- Pangasinan