16 PRINTED INSTRUCTIONAL, EDUCATIONAL, TEACHING, LABOR MANAGEMENT AND PRODUCTIVITY MATERIALS FOR USE IN JANITORIAL MANAGEMENT PROGRAMS AND IN THE PERFORMANCE OF JANITORIAL SERVICES
41 EDUCATIONAL SERVICES, NAMELY, CONDUCTING CLASSES, SEMINARS, CONFERENCES AND WORKSHOPS IN THE FIELDS OF JANITORIAL MANAGEMENT AND JANITORIAL SERVICES, AND THE DISTRIBUTION OF PRINTED MATERIALS IN CONNECTION THEREWITH