Soal olimpiade dan pembahasan
Ini kumpulan soal olimpiade Matematika yang baik
https://dumatika.id/soal-soal/
Jawaban soal IMSO 2004
http://files.chiuchang.org.tw:8080/MyWeb/download/imso/2004%20IMSO%20answer.pdf
Jawaban IMSO 2005
http://files.chiuchang.org.tw:8080/MyWeb/download/imso/2005%20IMSO%20answer.pdf
Jawaban IMSO 2006
http://files.chiuchang.org.tw:8080/MyWeb/download/imso/2006%20IMSO%20answer.pdf
soal imso 2008
http://www.chiuchang.org.tw/modules/mydownloads/visit.php?lid=1120
Jawaban essay imso 2008
https://jejakseribupena.files.wordpress.com/2018/02/imso-2008-essay-problems-solution.pdf
Jawaban imso 2010
http://files.chiuchang.org.tw:8080/MyWeb/download/imso/2010%20IMSO%20answer.pdf
Jawaban imso 2011
http://files.chiuchang.org.tw:8080/MyWeb/download/imso/2011%20IMSO%20answer.pdf
Soal imso 2009 - 2012
https://nzetaedu.blogspot.com/2019/10/download-soal-soal-imso.html
Jawaban imso 2013
http://files.chiuchang.org.tw:8080/MyWeb/download/imso/2013%20IMSO%20answer.pdf
Jawaban imso 2014
http://files.chiuchang.org.tw:8080/MyWeb/download/imso/2014%20IMSO%20answer.pdf
Jawaban imso 2015
http://files.chiuchang.org.tw:8080/MyWeb/download/imso/2015%20IMSO%20answer.pdf
jawab PMWC
http://files.chiuchang.org.tw:8080/MyWeb/download/pmwc/1-14_PMWC_answer.pdf
Buku PMWC dan soal olimpiade
https://play.google.com/books/reader?id=0LaYDwAAQBAJ&pg=GBS.PA241&hl=id
Soal-soal olimpiade international
https://www.sofuganda.org/resources
Kumpulan soal olimpiade SD
https://agungagmi.blogspot.com/2018/02/kumpulan-soal-osn-matematika-sd.html
Soal-soal IMSO 2014 sampai 2018
[File: IMSO 2014 MATH Short Answer.pdf]
Penulis: Yohanes Surya