F. D. R. Anggraeni, R. P. Rassy, and S. Sereesuchat, “Development of a Textured Picture Book Equipped with Crosswords as a Media for Learning Biology Sub-Material Epithelial Tissue”, Jou. Ed. Tech. Lrng. Crtv, vol. 1, no. 2, pp. 68-77, Dec. 2023.