Andila, Putri Sri, Tri Warseno, I Putu Agus Hendra Wibawa, and I Gede Tirta. 2019. “Phytochemical Study on the Flower of Alstonia Macrophylla Wall. Ex G.Don (Apocynaceae) from Sumbawa Island, Indonesia”. BERKALA PENELITIAN HAYATI JOURNAL OF BIOLOGICAL RESEARCHES 24 (2), 107-11. https://doi.org/10.23869/27.