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- American Association for the Advancement of Science 35 results
- National Science Teachers Association 24 results
- National Research Council of the Philippines 22 results
- Nuffield Foundation 22 results
- Science Education Center, University of the Philippines 21 results
- Scottish Education Department 21 results
- MacCracken, Helen Dolman 20 results
- Schools Council, Nuffield Foundation 20 results
- Katagiri, George 18 results
- Jacobson, Willard J. 16 results
- Unesco 15 results
- Talisayon, Vivien M. 14 results
- Secondary Science Curriculum Review 13 results
- United Nations Educational, Scientific and Cultural Organization 13 results
- Kuhn, Thomas S. 12 results
- Rockcastle, Verne N. 12 results
- Salomon, Frank R. 12 results
- Beiser, Arthur 11 results
- Sarton, George 1884-1956 11 results
- Schmidt, Victor E. 11 results
- Association for Science Education 10 results
- Beauchamp, Wilbur Lee 10 results
- Cunningham, John D. 10 results
- Parker, Sybil P. 10 results
- Velasco, Jose R. 10 results
- Decker, Donald Gilmore 9 results
- Krauskopf, Konrad Bates 1910- 9 results
- Nuffield Foundation. Secondary Science Project 9 results
- Ogena, Ester B. 9 results
- Pacific Science Association 9 results
- Philippines (Republic). National Science Development Board 9 results
- Schneider, Herman 9 results
- Schneider, Nina 9 results
- Unesco. Principal Regional Office for Asia and the Pacific 9 results
- Blough, Glenn Orlando 8 results
- Carale, Lourdes R. 8 results
- International Association for the Evaluation of Educational Achievement 8 results
- National Academy of Science and Technology (Philippines) 8 results
- University of the Philippines (Diliman). Science Education Center 8 results
- Arthur G.Tressier...et al 7 results
- Barnard, John Darrell 7 results
- Enger, Eldon D. 7 results
- Frasier, George Willard 7 results
- Holton, Gerald James 7 results
- Mallinson, George G. 7 results
- Martin, Michael O. 7 results
- National Academy of Science and Technology 7 results
- National Science and Technology Authority 7 results
- Rabago, Lilia M. 7 results
- Ross, Frederick C. 7 results more...