R. Olavi Viitamäki : Personality traits between puberty and adolecence : their relationships, development and constancy with reference to their relation to school achievement
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P-PERS-5BAF53
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| Author | R. Olavi Viitamäki |
| Coauthors | Yrjö Ahmavaara & Niilo Peltola |
| Title | Personality traits between puberty and adolecence : their relationships, development and constancy with reference to their relation to school achievement |
| Keywords | murrosikä |