How Extensively is Herbal Medicine Used as a Therapy for Insomnia? A Bibliometric Study, Saleh, Arman Yurisaldi, Saputra Dwi Arwandi Yo, Valentina Riezky, and Susanto Tirta Darmawan , Pharmacognosy Journal, June 2025, Volume 17, Issue 3, p.342-364, (2025)