00677naa#a2200169#i#4500001001500000005001700015011001400032100004100046102000700087200010800094210012500202215001000327608002700337675008900364700003200453856002200485EN\\bibl\9795020250517015524.6##a2686-9896##a20250428b2025####ek#y0engy0150####ca##aRU1#aELECTIVE COURSE IN MATHEMATICS FOR STUDENTS  OF MBOU SECONDARY SCHOOL No. 7 IN ANGARSKeJournal article1#aAngarskcFederal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»d2025##a1 с.##aJournal article2local##aПреподавание отдельных учебных предметов. 372.8#1aMusevagTat'yana Nikolaevna4#aangtu.editorum.ru