Gaya APA

Sitompul, R, D. et al (2012). Age, gender, and muscle strength: a study based on Indonesia samples (Vol. 16, No. 1, Tahun). : American foundations information service.

Gaya MLA

Sitompul, Ronasi, Disilina. et al. "Age, gender, and muscle strength: a study based on Indonesia samples". Vol. 16, No. 1, Tahun : American foundations information service, 2012. Text.