AUTHOR
SpringerLink (Online service)
48
American Association for the Advancement of Science
37
National Science Teachers Association
31
National Research Council of the Philippines
25
Nuffield Foundation
22
Science Education Center, University of the Philippines
21
Scottish Education Department
21
MacCracken, Helen Dolman
20
Schools Council, Nuffield Foundation
20
Jacobson, Willard J.
19
Katagiri, George
18
SpringerLink (Online Service)
17
Unesco
16
Association for Science Education
15
Talisayon, Vivien M.
15
United Nations Educational, Scientific and Cultural Organization
15
Rockcastle, Verne N.
14
Harlen, Wynne
13
Schmidt, Victor E.
13
Secondary Science Curriculum Review
13
Gega, Peter C.
12
Kuhn, Thomas S.
12
Salomon, Frank R.
12
Beiser, Arthur
11
Sarton, George 1884-1956
11
Velasco, Jose R.
11
Beauchamp, Wilbur Lee
10
Cunningham, John D.
10
Parker, Sybil P.
10
Philippines (Republic). National Science Development Board
10
University of the Philippines (Diliman). Science Education Center
10
Carale, Lourdes R.
9
Carin, Arthur A.
9
Decker, Donald Gilmore
9
International Association for the Evaluation of Educational Achievement
9
Krauskopf, Konrad Bates 1910-
9
National Academy of Science and Technology (Philippines)
9
Nuffield Foundation. Secondary Science Project
9
Ogena, Ester B.
9
Pacific Science Association
9
Schneider, Herman
9
Schneider, Nina
9
Unesco. Principal Regional Office for Asia and the Pacific
9
Abruscato, Joseph
8
Alferez, Merle S.
8
Biological Sciences Curriculum Study
8
Blough, Glenn Orlando
8
Rabago, Lilia M.
8
Victor, Edward 1914-
8
Arthur G.Tressier...et al
7
more ...