Okla. Stat. tit. 70, § 16-111.1
The funds allocated for textbooks in Section 16-114a of this title may be used by a school district for supplementary textbooks and other instructional materials other than those selected and listed by the State Textbook Committee.
Laws 1974, SB 113, c. 124, § 1, emerg. eff. May 3, 1974; Amended by Laws 1976, HB 1896, c. 99, § 4, emerg. eff. May 11, 1976; Amended by Laws 1993, c. 229, § 12, emerg. eff. July 1, 1993; Amended by Laws 2011, SB 278, c. 367, § 4 (superseded document available).