TY - BOOK ED - National Council of Educational Research and Training TI - Customer service executive: textbook for class 12 SN - 9789352924820 U1 - 373.238 23rd ed. PY - 2024/// CY - New Delhi PB - National Council of Educational Research and Training KW - PUBLIC SCHOOL; SECOUNDARY EDUCATION N1 - Gifted by N.C.E.R.T ER -