| Paper | Date | Page | Article Title | Type | ||
|---|---|---|---|---|---|---|
| 151 |
 |
Helper Journal | 1968-02-01 | issue | ||
| 152 |
 |
Helper Journal | 1968-02-08 | issue | ||
| 153 |
 |
Helper Journal | 1968-02-15 | issue | ||
| 154 |
 |
Helper Journal | 1968-02-22 | issue | ||
| 155 |
 |
Helper Journal | 1968-02-29 | issue | ||
| 156 |
 |
Helper Journal | 1969-02-06 | issue | ||
| 157 |
 |
Helper Journal | 1969-02-13 | issue | ||
| 158 |
 |
Helper Journal | 1969-02-20 | issue | ||
| 159 |
 |
Helper Journal | 1969-02-27 | issue | ||
| 160 |
 |
Helper Journal | 1970-02-05 | issue | ||
| 161 |
 |
Helper Journal | 1970-02-12 | issue | ||
| 162 |
 |
Helper Journal | 1970-02-19 | issue | ||
| 163 |
 |
Helper Journal | 1970-02-26 | issue | ||
| 164 |
 |
Helper Journal | 1971-02-04 | issue | ||
| 165 |
 |
Helper Journal | 1971-02-11 | issue | ||
| 166 |
 |
Helper Journal | 1971-02-18 | issue | ||
| 167 |
 |
Helper Journal | 1971-02-25 | issue | ||
| 168 |
 |
Helper Journal | 1972-02-03 | issue | ||
| 169 |
 |
Helper Journal | 1972-02-10 | issue | ||
| 170 |
 |
Helper Journal | 1972-02-17 | issue | ||
| 171 |
 |
Helper Journal | 1972-02-24 | issue | ||
| 172 |
 |
Helper Journal | 1973-02-01 | issue | ||
| 173 |
 |
Helper Journal | 1973-02-08 | issue | ||
| 174 |
 |
Helper Journal | 1973-02-15 | issue | ||
| 175 |
 |
Helper Journal | 1973-02-22 | issue |