山羊百科，林文智老師的植物、山岳、攝影紀錄

Part I

• e-Flora of Thailand；106. Oxystophyllum Blume；https://botany.dnp.go.th/eflora/floraGenus.html?factsheet=Oxystophyllum&tdcode=08158

Part II

• Ames, Bibl. Enum. Bornean Pl. (Merrill) 156 1921；https://www.biodiversitylibrary.org/page/11382259#page/160/mode/1up

Part III