Umar, Umar Ali, and Yunusa Onivehu Obadoba. 2019. “SOURCES OF RISK IN THE RICE PRODUCTION: A CASE OF SMALLHOLDER FARMERS AND PRODUCERS OF SOBA COMMUNITY IN NORTHERN NIGERIA”. Jurnal Mekanikal 42 (1). https://jurnalmekanikal.utm.my/index.php/jurnalmekanikal/article/view/360.