| Paper | Date | Page | Article Title | Type | ||
|---|---|---|---|---|---|---|
| 1 |
 |
Helper Journal | 1931-04-02 | 2 | page | |
| 2 |
 |
Helper Journal | 1931-04-02 | 7 | page | |
| 3 |
 |
Helper Journal | 1933-04-21 | 1 | page | |
| 4 |
 |
Helper Journal | 1933-04-28 | 1 | page | |
| 5 |
 |
Helper Journal | 1933-04-28 | 5 | page | |
| 6 |
 |
Helper Journal | 1934-04-27 | 1 | page | |
| 7 |
 |
Helper Journal | 1945-04-12 | 1 | page | |
| 8 |
 |
Helper Journal | 1945-04-26 | 1 | page | |
| 9 |
 |
Helper Journal | 1948-04-08 | 5 | page | |
| 10 |
 |
Helper Journal | 1957-04-04 | 2 | page | |
| 11 |
 |
Helper Journal | 1973-04-19 | 1 | page |