76022576
Apr 11, 2000
Nov 20, 2001
INSTRUCTIONAL GUIDES, STUDENT WORKBOOKS, AND TEACHER'S MANUALS IN THE FIELD OF MATHEMATICS; PENS, PENCILS, PENCIL CASES AND DRAWING RULERS
Paper Goods and Printed MatterTEACHING IN THE FIELD OF MATHEMATICS; EDUCATIONAL SERVICES, NAMELY, TRAINING IN THE FIELD OF MATHEMATICS EDUCATION PROVIDED TO STUDENTS AND TEACHERS THROUGH SEMINARS, CONFERENCES, WORKSHOPS, AND WRITTEN MATERIALS
Education and Entertainment