H. Ekapratama, “A A Study on Hemoglobin Concentration Measurement in Two Different Adolescent Populations in Samarinda, Indonesia: Pengukuran Kadar Hemoglobin pada 2 Kelompok Remaja di Kota Samarinda ”, JAI, vol. 5, no. 4, pp. 3310-3317, Dec. 2025.