For citations:
Petrov V.V., Kychkina A.E. SOCIAL EFFECTS IN THE INTRODUCTION OF SERVICES FOR PARENTS FOR INFORMING AND NON-CASH PAYMENT OF SCHOOL MEALS. Informatics and education. 2018;(3):52-54. (In Russ.)
Petrov V.V., Kychkina A.E. SOCIAL EFFECTS IN THE INTRODUCTION OF SERVICES FOR PARENTS FOR INFORMING AND NON-CASH PAYMENT OF SCHOOL MEALS. Informatics and education. 2018;(3):52-54. (In Russ.)