SHARMA, N.; KRUIJT, M.; RAAIJMAKERS, J. M. (Article retracted 17/09/2010). Nepal Journal of Science and Technology, [S. l.], v. 10, p. 21–28, 2010. DOI: 10.3126/njst.v10i0.2805. Disponível em: https://www.nepjol.info/index.php/NJST/article/view/2805. Acesso em: 5 may. 2024.