Analysis of information sources in references of the Wikipedia article "Pengelasan najam" in Malay language version.
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(bantuan) — Explains the reason for the difference in color perception.|date=
(bantuan) — Explains the reason for the difference in color perception.|date=
(bantuan) — Explains the reason for the difference in color perception.|date=
(bantuan) — Explains the reason for the difference in color perception.