Ladapan Saengklai. 1991. Heterologous transformation of aspergillus niger. Faculty of Graduate Studies, Mahidol University;
Ladapan Saengklai. (1991) Heterologous transformation of aspergillus niger . Mahidol University/Bangkok.
Ladapan Saengklai. Heterologous transformation of aspergillus niger. . Bangkok:Mahidol University, 1991.
Ladapan Saengklai. (1991) Heterologous transformation of aspergillus niger . Mahidol University/Bangkok.