Absolute Refractory Period %28ARP%29
Here's your citation in American Psychological Association (APA) format:
Absolute Refractory Period %28ARP%29. (n.d.). In Alleydog.com's online glossary. Retrieved from: https://www.alleydog.com/glossary/definition-cit.php?term=Absolute+Refractory+Period+%2528ARP%2529