SILVERMAN, K., & ET AL. (1996). INCREASING OPIATE ABSTINENCE THROUGH VOUCHER-BASED REINFORCEMENT THERAPY.
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Chicago-čujuhus (17. p.)
SILVERMAN, K., juo ET AL. INCREASING OPIATE ABSTINENCE THROUGH VOUCHER-BASED REINFORCEMENT THERAPY. 1996.
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MLA-čujuhus (9. p.)
SILVERMAN, K., juo ET AL. INCREASING OPIATE ABSTINENCE THROUGH VOUCHER-BASED REINFORCEMENT THERAPY. 1996.
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