| Issue Date | Title | Author(s) | Relation | scopus | WOS | Fulltext/Archive link |
| 1981 | Study on the geographical variation of brown planthopper ( Nilaparvata lugens Stal) in Taiwan. I. Comparison of the morphometric measurements | Chu, Y. I.; Kou, R. | NTU phytopathologist & entomologist 8, 22-30 | | | |
| 1982 | Study on the geographical variations of the brown planthopper ( Nilaparvata lugens Stal) in Taiwan | Chu, Y. I.; Kou, R.; Lee, Y. S. | Chinese journal of entomology 2, 1-55 | | | |
| 1983 | The geographical variation of brown planthopper in Taiwan, with special consideration to its occurrence mechanism | Chu, Y. I.; Kou, R. | Rostria 35, 445-449 | | | |
| 1983 | 臺灣北部地區褐飛蝨(Nilaparuata lugens Stal)地理變異存在性之探討 | Chu, Y. I.; Kou, R.; Lee, Y. S. | 中華昆蟲 (Chinese journal of entomology) 第3卷第1期，頁1-14 | | | |
