Participatory assessment of management and biosecurity practices of smallholder pig farms in North East India oleh Mahak Singh, Nungshitula Pongenere, R. T. Mollier, R. N. Patton, Rekha Yadav, Rahul Katiyar, Priyanka Jaiswal, M. Bhattacharjee, H. Kalita, V. K. Mishra