山羊百科，林文智老師的植物、山岳、攝影紀錄

Part I

• Gymnosperms - Co's Digital Flora of the Philippines；https://www.philippineplants.org/Families/Gymnosperms.html
• Digital Flora of Indonesia；Gymnosperms；https://www.indonesiaplants.org/gymnosperms/

Part II

• Koorders & Valeton, Bijdr Booms. Java (Koorders & Valeton) 9: 345-353 1902；https://www.biodiversitylibrary.org/page/49664646#page/357/mode/1up

• Systematics II- Pteridophytes and GymnospermsSection B: Gymnosperms Gnetopsida II；Gnetopsida；Bot/SystII/ Gnetopsida –II: Reproductive biology 31

• GKG Botany Department - Blogger；http://gkgbotanydept.blogspot.com/2019/10/f.html

F.Y.B.Sc. Sem-I, Paper No-II (2019-20)；Dr. R.P. Jadhav, GKG College, Kolhapur；Gymnosperm : Gnetum

• Gnetum

• Singh, V.P. 2006 Gymnosperm (naked seeds plant) : structure and development 602 Google Book

• Skan, J. Linn. Soc., Bot. (Forbes & Hemsl.) 26: 538 1890；https://www.biodiversitylibrary.org/item/8383#page/578/mode/1up

Part III

• Endress, Peter K. 1996 Structure and Function of Female and Bisexual Organ Complexes in Gnetales International Journal of Plant Sciences 157(6): S113-125