Good source for the relationship between absolute magnitude, diameter, and albedo?
The JPL CNEOS
asteroid size estimator
and various asteroid albedo papers cite
Harris and Harris 1997.
That paper is behind a paywall, but
Stuart and Binzel 2004
attribute this formula to it:
$$ H = C - 5 \log_{10} D - 2.5 \log_{10} p_V$$
where $H$ is absolute magnitude, $p_V$ is albedo, and $C$ = 15.618.