TY - EBOOK TI - Credibility, validity, and assumptions in program evaluation methodology [electronic resource] / 1st ed AU - Nkwake, Apollo M. SN - 9783319190211 PB - Springer International Publishing : Imprint: Springer PP - Cham : Springer International Publishing : Imprint: Springer, 2015. PY - 2015 UR - https://library.korea.ac.kr/detail/?cid=CAT000046037933&ctype=e