First, You need to identify your variables clearly, then start to collect the research articles that discuss each variable (even if it linked it with another variable that is far from you, just you can focus on the part that matters to you). Next, you try to find the articles that relte your variables to each other in way or another or that revolve around the topic. Now you're ready to write the literarure review by mentioning the authors, aim of the study, variables, methodology, and results of each study briefly.
I suggest to you to ask Google the following: an article on rice marketing through cooperatives. Then follow the referenced reported in that article. Try to choose an updated one. Wish you luck.
As usual, you can briefly outline what is the main problem regarding the issue. Secondly, find what are the issues from other sources. Then only you can find the real gaps in the research. This will narrow down the topic and guide you to write the literature review. Good Luck!