Soon, Chye Tan. Phenylalanine ammonia-lyase and phenylalanine ammonialyase inactivating system in sunflower leaf/ by Soon Chye Tan - Ithaca, N.Y.: Cornell University, 1977. - 85 p.: ill.; 28 cm. Photocopy (Xerox). Thesis (M.Sc.) - Cornell University, 1977. Bibliography:p.71-85. Subjects--Topical Terms: Sunflowers.Phenylalanine metabolism.