References
- Spitzer , H. F. 1951 . “ Testing instruments and practices in relation to present concepts of teaching arithmetic ” . In The Teaching of Arithmetic , Fiftieth yearbook, Part II Chicago : National Society for the Study of Education . Ch. 10
- Buros , O. K. , ed. 1938‐1940 . Mental Measurement Yearbooks , Rutgers : Gryphon Press . third, fourth and fifth)
- Kough , J. and Dehaan , R. 1955 . Teachers’ Guidance Handbooks , Chicago : Science Research Associates . elementary and secondary editions: Vol. 1 — Identifying children with special needs; Vol. 2 — Helping children with special needs. Roster work‐book,