Bagaimana Menghitung Ukuran Sampel dan Mengapa by Adi Susilo Jahja · 13 February 2018 Kim, Jeehyoung, and Bong Soo Seo. “How to calculate sample size and why.” Clinics in orthopedic surgery 5, no. 3 (2013): 235-242. About Adi Susilo Jahja Twitter • Post Views: 6,180