I am seeking papers elucidating the methodologies employed in addressing the intricacies inherent in the multi-index transportation problem and the multi-stage transportation problem. My objective is to compile a selection of papers that expound upon these techniques straightforwardly and methodically. This compilation aims to nominate them to benefit a fledgling researcher venturing into this domain. I am open to receiving recommendations that align with the above criteria, enhancing the material I intend to present to the aspiring researcher. Your valuable suggestions in this regard would be greatly appreciated.