References on sodium and potassium are critically important ions in excited cell for the transmission of impulse.

Sodium (Na+) and potassium (K+) ions play essential roles in the physiology of excitable cells, such as neurons and muscle cells, particularly in generating and propagating action potentials. Here are several references that cover the basics as well as the advanced aspects of their roles in impulse transmission:

1. Hille, B. (2001). "Ion Channels of Excitable Membranes" (3rd ed.). Sunderland, MA: Sinauer Associates. This text provides comprehensive coverage of the properties and functions of ion channels, with particular focus on the roles of Na+ and K+ channels in action potential generation.

2. Kandel, E. R., Schwartz, J. H., Jessell, T. M., Siegelbaum, S. A., & Hudspeth, A. J. (2012). "Principles of Neural Science" (5th ed.). New York: McGraw-Hill. This is a classic textbook in neuroscience that gives a detailed explanation of how neurons and their ion channels work to produce electrical signals.

3. Bear, M. F., Connors, B. W., & Paradiso, M. A. (2016). "Neuroscience: Exploring the Brain" (4th ed.). Philadelphia, PA: Wolters Kluwer. A textbook that is widely used in undergraduate and graduate courses, it simplifies complex concepts regarding how excitable cells function.

4. Alberts, B., Johnson, A., Lewis, J., Raff, M., Roberts, K., & Walter, P. (2015). "Molecular Biology of the Cell" (6th ed.). New York: Garland Science. Although primarily focused on cellular biology, this book provides a solid foundation for understanding the molecular mechanisms that underlie the function of ion channels in cells.

5. Purves, D., Augustine, G. J., Fitzpatrick, D., Hall, W. C., Lamantia, A., McNamara, J. O., & White, L. E. (2018). "Neuroscience" (6th ed.). Sunderland, MA: Sinauer Associates. This neuroscience textbook covers the principles of neural science, including detailed discussions on ion channels and membrane potential.

6. Levitan, I. B., & Kaczmarek, L. K. (2015). "The Neuron: Cell and Molecular Biology" (4th ed.). New York: Oxford University Press. This book offers a comprehensive treatment of the cell and molecular biology of neurons, with a focus on ion channel function and its role in signaling.

For more specific or research-oriented information, you may consult peer-reviewed articles and scientific reviews in journals such as "Neuron," "Journal of Physiology," "Progress in Neurobiology," "Annual Review of Neuroscience," and "Nature Reviews Neuroscience."

Access to the full text of these references might require a subscription or purchase unless you have access through an academic institution or library. However, abstracts and summaries are often freely available through resources like PubMed.