Latihan jongkok dan berdiri untuk melatih kekuatan otot

https://yangapa.com/latihan-jongkok-berdiri-untuk-melatih-kekuatan-otot-xpfs/

http://eprints.ums.ac.id/18406/1/02._HALAMAN_DEPAN.pdf

http://rumahbelajar.id/Media/Dokumen/5cdd6510b646044330d686c8/156af3209e829103b5da5e45c7cb1c15.pdf

https://text-id.123dok.com/document/qvl47m1y-penjasorkes-sd-mi-kelas-4-pelajaran-2.html

https://latihansoalonline.com/olahraga/2628

https://www.tokopedia.com/blog/manfaat-squat-hlt/
https://osf.io/365gc/download

http://jpdo.ppj.unp.ac.id/index.php/jpdo/article/download/226/89/

https://perpustakaan.bsn.go.id/index.php?p=news&id=1278


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