noun
research materials
Refers to materials, resources, or data used for research. A somewhat formal or written term.
この論文を書くために、多くの研究の料を集めた。
I gathered a lot of research materials to write this paper.
Compound of 研究 (research) + の (possessive particle) + 料 (material, fee). The exact derivation is uncertain; it is a relatively uncommon term for research materials.