Secondary Teachers’ Advanced Knowledge for Teaching Algebra. Yang, S. A & Lee, S. J. School Mathematics, 21(2):419–439, June, 2019.
Secondary Teachers’ Advanced Knowledge for Teaching Algebra [link]Paper  doi  bibtex   
@article{yang_secondary_2019,
	title = {Secondary {Teachers}’ {Advanced} {Knowledge} for {Teaching} {Algebra}},
	volume = {21},
	issn = {1229-4322, 2288-8365},
	url = {http://www.dbpia.co.kr/Journal/ArticleDetail/NODE08749259},
	doi = {10.29275/sm.2019.06.21.2.419},
	language = {ko},
	number = {2},
	urldate = {2022-11-18},
	journal = {School Mathematics},
	author = {Yang, Sun A and Lee, Soo Jin},
	month = jun,
	year = {2019},
	pages = {419--439},
}

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