Ritva Ketola
发表
Tuija Virtanen,
Leila Hopsu,
Esa-Pekka Takala,
2009,
Applied ergonomics.
Toivo Niskanen,
Jouni Lehtelä,
Ritva Ketola,
2010,
Applied ergonomics.
Esa-Pekka Takala,
Irmeli Pehkonen,
Ritva Ketola,
2009,
International journal of occupational safety and ergonomics : JOSE.
Ritva Ketola,
R. Ketola,
2004
.
Jaro Karppinen,
Ritva Ketola,
Eira Viikari-Juntura,
2011,
Scandinavian journal of work, environment & health.
Ritva Ketola,
Eira Viikari-Juntura,
Rahman Shiri,
2010,
Scandinavian journal of work, environment & health.
Nina Nevala,
Ritva Ketola,
R. Ketola,
2012
.
Ritva Ketola,
Eira Viikari-Juntura,
Rahman Shiri,
2009,
Scandinavian journal of work, environment & health.