ALSAKKAL, Ghadah A.; AL KASSAB, Mowafaq Muhammed. Approximate Methods to Obtain the Optimum Stratum Boundaries: A Comparative Study. EURASIAN JOURNAL OF SCIENCE AND ENGINEERING, [S. l.], v. 7, n. 1, p. 197–204, 2021. DOI: 10.23918/eajse.v7i1p197. Disponível em: https://eajse.tiu.edu.iq/index.php/eajse/article/view/198. Acesso em: 18 apr. 2026.