Ownitee Penpain. 1989. Formation of N-nitrosopiperidine in sausages. Faculty of Graduate Studies, Mahidol University;
Ownitee Penpain. (1989) Formation of N-nitrosopiperidine in sausages . Mahidol University/Bangkok.
Ownitee Penpain. Formation of N-nitrosopiperidine in sausages. . Bangkok:Mahidol University, 1989.
Ownitee Penpain. (1989) Formation of N-nitrosopiperidine in sausages . Mahidol University/Bangkok.