| Popjes, Jack; Popjes, Josephine | Phonemic Statement of Canela | 2009 | | Linguistics |
| Popjes, Jack and Josephine Popjes | Canela-Krahô | 1986 | | Linguistics |
| Popjes, Jack | Wall-chart primers | 1989 | Notes on Literacy (online collection) | Literacy and Education |
| Popjes, Jack; Popjes, Josephine | Ihkàhhôc to hahkre xà [1-3] | 1982 | | |
| Popjes, Jack | Ortografia Canela-Krahô | 1982 | | Literacy and Education |
| Popjes, Jack; Popjes, Josephine | Surface structure of Canela grammar | 1972 | | Linguistics |
| Popjes, Jack | Pahpãm wỳr ipipkjêr xà | 1982 | | |
| Popjes, Jack | Xêpkà jarẽn xà | 1982 | | |
| Popjes, Jack | Informação primária e secundária em narrativas canela | 1974 | | Linguistics |
| Ham, Patricia; Popjes, Jack | Kraho and Canela Museu Wordlist | 1970 | | Language Assessment, Linguistics |
| Popjes, Jack; Popjes, Josephine | Grammatical Notes [Canela] | 1972 | | Linguistics |
| Popjes, Jack | Pỳp jarẽn xà | 1982 | | |
| Popjes, Jack | Primary and secondary information in Canela narrative | 1974 | | Linguistics |
| Crocker, William H.; Melatti, Júlio César; Kindell, Gloria E.; Popjes, Jack | Ortografia das Línguas Canela, Krahô, Apinayé e Kayapó | 2018 | | Linguistics, Literacy and Education |
| Popjes, Jack | LISTA DE VOCÁBULOS [Canela Ramkokamekra] | 1991 | | Language Assessment, Linguistics |
| Popjes, Jack and Josephine Popjes, compilers | Dicionário temático, canela-krahô e português: Vol. 1 Seção A, Vocabulário sobre ambiente físico | 1982 | | Linguistics |
| Popjes, Jack | Me panquêtjê jũjarẽn xà | 1987 | | |
| Popjes, Jack | Pyt me putwrỳ | 1982 | | |
| Popjes, Jack | Krãcurom me catutkà | 1982 | | |
| Popjes, Jack | Ropkrã jarẽn xà | 1982 | | |
