“Three Different Analytical Techniques for Measuring Serum Sodium as Well as Potassium Levels in Yemeni Patients with Kidney Disease: A Comparative Study” (2024) Hadhramout University Journal of Natural & Applied Sciences, 21(1). Available at: https://hu.edu.ye/hu-publications/journals/index.php/hujnas/article/view/597 (Accessed: 30 July 2026).