The Combination of Spirulina Extract and Sambiloto Effect Histopathologically on Medial Colon from Plasmodium berghei Anka Infected Mice, Kusmardi, Kusmardi,, Wisnubaroto Rizky Priambodo, and Firzani Dilla , Pharmacognosy Journal, May 2019, Volume 11, Issue 3, p.564-569, (2019)